From 65c1a4a22af190df1852bf6e06aba63e421a958c Mon Sep 17 00:00:00 2001 From: Jason Miller Date: Mon, 4 Dec 2017 12:53:02 -0500 Subject: [PATCH 01/71] Correction: Preact isn't based on Snabbdom --- esm/index.js | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/esm/index.js b/esm/index.js index 690e61a..53239b4 100644 --- a/esm/index.js +++ b/esm/index.js @@ -2,7 +2,7 @@ /** * This code is a revisited port of the snabbdom vDOM diffing logic, - * the same that fuels as fork Vue.js, Preact, and other libraries. + * the same that fuels as fork Vue.js, and other libraries. * @credits https://github.com/snabbdom/snabbdom */ From 158e6ce1a601a9f3b1c30e59f4b13c67e0faa295 Mon Sep 17 00:00:00 2001 From: Andrea Giammarchi Date: Mon, 4 Dec 2017 15:57:39 -0200 Subject: [PATCH 02/71] removed Preact mention --- cjs/index.js | 2 +- coverage/lcov-report/cjs/index.html | 2 +- coverage/lcov-report/cjs/index.js.html | 4 ++-- coverage/lcov-report/index.html | 2 +- esm/index.js | 2 +- index.js | 2 +- 6 files changed, 7 insertions(+), 7 deletions(-) diff --git a/cjs/index.js b/cjs/index.js index ffadf64..fd422f5 100644 --- a/cjs/index.js +++ b/cjs/index.js @@ -3,7 +3,7 @@ /** * This code is a revisited port of the snabbdom vDOM diffing logic, - * the same that fuels as fork Vue.js, Preact, and other libraries. + * the same that fuels as fork Vue.js or other libraries. * @credits https://github.com/snabbdom/snabbdom */ diff --git a/coverage/lcov-report/cjs/index.html b/coverage/lcov-report/cjs/index.html index 389c96b..e455c3e 100644 --- a/coverage/lcov-report/cjs/index.html +++ b/coverage/lcov-report/cjs/index.html @@ -81,7 +81,7 @@

Code coverage - generated by istanbul at Mon Dec 04 2017 12:09:31 GMT-0200 (-02) + generated by istanbul at Mon Dec 04 2017 15:57:28 GMT-0200 (-02)
diff --git a/coverage/lcov-report/cjs/index.js.html b/coverage/lcov-report/cjs/index.js.html index bdc474c..84baf27 100644 --- a/coverage/lcov-report/cjs/index.js.html +++ b/coverage/lcov-report/cjs/index.js.html @@ -288,7 +288,7 @@

  /** * This code is a revisited port of the snabbdom vDOM diffing logic, - * the same that fuels as fork Vue.js, Preact, and other libraries. + * the same that fuels as fork Vue.js or other libraries. * @credits https://github.com/snabbdom/snabbdom */   @@ -407,7 +407,7 @@

Code coverage - generated by istanbul at Mon Dec 04 2017 12:09:31 GMT-0200 (-02) + generated by istanbul at Mon Dec 04 2017 15:57:28 GMT-0200 (-02)
diff --git a/coverage/lcov-report/index.html b/coverage/lcov-report/index.html index 6d62ef1..b99b3df 100644 --- a/coverage/lcov-report/index.html +++ b/coverage/lcov-report/index.html @@ -81,7 +81,7 @@

Code coverage - generated by istanbul at Mon Dec 04 2017 12:09:31 GMT-0200 (-02) + generated by istanbul at Mon Dec 04 2017 15:57:28 GMT-0200 (-02)
diff --git a/esm/index.js b/esm/index.js index 53239b4..82f7df4 100644 --- a/esm/index.js +++ b/esm/index.js @@ -2,7 +2,7 @@ /** * This code is a revisited port of the snabbdom vDOM diffing logic, - * the same that fuels as fork Vue.js, and other libraries. + * the same that fuels as fork Vue.js or other libraries. * @credits https://github.com/snabbdom/snabbdom */ diff --git a/index.js b/index.js index 4654fd6..da05841 100644 --- a/index.js +++ b/index.js @@ -5,7 +5,7 @@ var domdiff = (function (exports) { /** * This code is a revisited port of the snabbdom vDOM diffing logic, - * the same that fuels as fork Vue.js, Preact, and other libraries. + * the same that fuels as fork Vue.js or other libraries. * @credits https://github.com/snabbdom/snabbdom */ From 019e3dfa883f573b96aaed5b4397c2c1f140349c Mon Sep 17 00:00:00 2001 From: Andrea Giammarchi Date: Mon, 4 Dec 2017 15:57:42 -0200 Subject: [PATCH 03/71] 0.1.4 --- package.json | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/package.json b/package.json index 8e5250c..2ef703f 100644 --- a/package.json +++ b/package.json @@ -1,6 +1,6 @@ { "name": "domdiff", - "version": "0.1.3", + "version": "0.1.4", "description": "A fast and simple way to diff childNodes", "browser": "min.js", "main": "cjs/index.js", From ccbcdba64646c09bb9c23370b8c4fe0d94b93fcb Mon Sep 17 00:00:00 2001 From: Andrea Giammarchi Date: Mon, 4 Dec 2017 17:46:43 -0200 Subject: [PATCH 04/71] removed exports from browser version + clean up --- cjs/index.js | 28 ++++-------- coverage/coverage.json | 2 +- coverage/lcov-report/cjs/index.html | 16 +++---- coverage/lcov-report/cjs/index.js.html | 60 +++++++------------------ coverage/lcov-report/index.html | 16 +++---- coverage/lcov.info | 62 ++++++++++++-------------- esm/index.js | 28 ++++-------- index.js | 23 ++++------ min.js | 4 +- package.json | 2 +- test/test.js | 2 + 11 files changed, 92 insertions(+), 151 deletions(-) diff --git a/cjs/index.js b/cjs/index.js index fd422f5..548a418 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100% Branches - 38/38 + 36/36
100% @@ -37,10 +37,10 @@

100% Lines - 56/56 + 54/54
- 1 statement, 3 branches + 2 branches Ignored     

@@ -66,13 +66,13 @@

index.js
100% - 59/59 + 57/57 100% - 38/38 + 36/36 100% 0/0 100% - 56/56 + 54/54 @@ -81,7 +81,7 @@

Code coverage - generated by istanbul at Mon Dec 04 2017 15:57:28 GMT-0200 (-02) + generated by istanbul at Mon Dec 04 2017 17:46:30 GMT-0200 (-02)
diff --git a/coverage/lcov-report/cjs/index.js.html b/coverage/lcov-report/cjs/index.js.html index 84baf27..5cd1b9d 100644 --- a/coverage/lcov-report/cjs/index.js.html +++ b/coverage/lcov-report/cjs/index.js.html @@ -22,12 +22,12 @@

100% Statements - 59/59 + 57/57
100% Branches - 38/38 + 36/36
100% @@ -37,10 +37,10 @@

100% Lines - 56/56 + 54/54
- 1 statement, 3 branches + 2 branches Ignored     

@@ -155,17 +155,7 @@

106 107 108 -109 -110 -111 -112 -113 -114 -115 -116 -117 -118 -119  +109        @@ -240,21 +230,11 @@

    44× -  -  -  -44× -1× -  -  -  -  44× 44×       -  44×     @@ -358,21 +338,11 @@

} else { let el = currentNodes[index]; - // until I am sure the else could never happen - // it might be a vDOM thing 'cause it never happens here - /* istanbul ignore if */ - Iif (el != futureStartNode) { - parentNode.insertBefore( - get(futureStartNode), - get(currentStartNode) - ); - } else { - currentNodes[index] = null; - parentNode.insertBefore( - get(el), - get(currentStartNode) - ); - } + currentNodes[index] = null; + parentNode.insertBefore( + get(el), + get(currentStartNode) + ); futureStartNode = futureNodes[++futureStart]; } } @@ -382,14 +352,14 @@

const place = pin != null ? get(pin) : before; while (futureStart <= futureEnd) { const ch = futureNodes[futureStart++]; - // until I am sure the else could never happen - // it might be a vDOM thing 'cause it never happens here + // ignore until I am sure the else could never happen. + // it might be a vDOM thing 'cause it never happens here. /* istanbul ignore else */ Eif (ch != null) parentNode.insertBefore(get(ch), place); } } - // until I am sure the else could never happen - // it might be a vDOM thing 'cause it never happens here + // ignore until I am sure the else could never happen. + // it might be a vDOM thing 'cause it never happens here. /* istanbul ignore else */ else Eif (futureStart > futureEnd) { while (currentStart <= currentEnd) { @@ -407,7 +377,7 @@

Code coverage - generated by istanbul at Mon Dec 04 2017 15:57:28 GMT-0200 (-02) + generated by istanbul at Mon Dec 04 2017 17:46:30 GMT-0200 (-02)
diff --git a/coverage/lcov-report/index.html b/coverage/lcov-report/index.html index b99b3df..f0972b8 100644 --- a/coverage/lcov-report/index.html +++ b/coverage/lcov-report/index.html @@ -22,12 +22,12 @@

100% Statements - 59/59 + 57/57
100% Branches - 38/38 + 36/36
100% @@ -37,10 +37,10 @@

100% Lines - 56/56 + 54/54
- 1 statement, 3 branches + 2 branches Ignored     

@@ -66,13 +66,13 @@

cjs/
100% - 59/59 + 57/57 100% - 38/38 + 36/36 100% 0/0 100% - 56/56 + 54/54 @@ -81,7 +81,7 @@

Code coverage - generated by istanbul at Mon Dec 04 2017 15:57:28 GMT-0200 (-02) + generated by istanbul at Mon Dec 04 2017 17:46:30 GMT-0200 (-02)
diff --git a/coverage/lcov.info b/coverage/lcov.info index 88084a2..37f4467 100644 --- a/coverage/lcov.info +++ b/coverage/lcov.info @@ -41,25 +41,23 @@ DA:67,96 DA:68,52 DA:72,52 DA:75,44 -DA:79,44 -DA:80,1 -DA:85,44 -DA:86,44 -DA:91,44 -DA:95,98 -DA:96,52 -DA:97,52 -DA:98,52 -DA:99,63 -DA:103,63 -DA:109,46 -DA:110,46 -DA:111,116 -DA:112,116 -DA:115,98 -DA:118,1 -LF:56 -LH:56 +DA:76,44 +DA:77,44 +DA:81,44 +DA:85,98 +DA:86,52 +DA:87,52 +DA:88,52 +DA:89,63 +DA:93,63 +DA:99,46 +DA:100,46 +DA:101,116 +DA:102,116 +DA:105,98 +DA:108,1 +LF:54 +LH:54 BRDA:19,1,0,98 BRDA:19,1,1,96 BRDA:20,2,0,50 @@ -86,18 +84,16 @@ BRDA:57,12,0,27 BRDA:57,12,1,96 BRDA:67,13,0,52 BRDA:67,13,1,44 -BRDA:79,14,0,0 -BRDA:79,14,1,44 -BRDA:95,15,0,52 -BRDA:95,15,1,46 -BRDA:97,16,0,25 -BRDA:97,16,1,27 -BRDA:103,17,0,63 -BRDA:103,17,1,0 -BRDA:109,18,0,46 -BRDA:109,18,1,0 -BRDA:112,19,0,100 -BRDA:112,19,1,16 -BRF:38 -BRH:38 +BRDA:85,14,0,52 +BRDA:85,14,1,46 +BRDA:87,15,0,25 +BRDA:87,15,1,27 +BRDA:93,16,0,63 +BRDA:93,16,1,0 +BRDA:99,17,0,46 +BRDA:99,17,1,0 +BRDA:102,18,0,100 +BRDA:102,18,1,16 +BRF:36 +BRH:36 end_of_record diff --git a/esm/index.js b/esm/index.js index 82f7df4..c7b547f 100644 --- a/esm/index.js +++ b/esm/index.js @@ -72,21 +72,11 @@ const domdiff = ( } else { let el = currentNodes[index]; - // until I am sure the else could never happen - // it might be a vDOM thing 'cause it never happens here - /* istanbul ignore if */ - if (el != futureStartNode) { - parentNode.insertBefore( - get(futureStartNode), - get(currentStartNode) - ); - } else { - currentNodes[index] = null; - parentNode.insertBefore( - get(el), - get(currentStartNode) - ); - } + currentNodes[index] = null; + parentNode.insertBefore( + get(el), + get(currentStartNode) + ); futureStartNode = futureNodes[++futureStart]; } } @@ -96,14 +86,14 @@ const domdiff = ( const place = pin != null ? get(pin) : before; while (futureStart <= futureEnd) { const ch = futureNodes[futureStart++]; - // until I am sure the else could never happen - // it might be a vDOM thing 'cause it never happens here + // ignore until I am sure the else could never happen. + // it might be a vDOM thing 'cause it never happens here. /* istanbul ignore else */ if (ch != null) parentNode.insertBefore(get(ch), place); } } - // until I am sure the else could never happen - // it might be a vDOM thing 'cause it never happens here + // ignore until I am sure the else could never happen. + // it might be a vDOM thing 'cause it never happens here. /* istanbul ignore else */ else if (futureStart > futureEnd) { while (currentStart <= currentEnd) { diff --git a/index.js b/index.js index da05841..0b9ef5f 100644 --- a/index.js +++ b/index.js @@ -1,4 +1,4 @@ -var domdiff = (function (exports) { +var domdiff = (function () { 'use strict'; /*! (c) 2017 Andrea Giammarchi (ISC) */ @@ -59,15 +59,8 @@ beforeNode // optional item/node to use as insertBefore delimiter futureStartNode = futureNodes[++futureStart]; } else { var el = currentNodes[index]; - // until I am sure the else could never happen - // it might be a vDOM thing 'cause it never happens here - /* istanbul ignore if */ - if (el != futureStartNode) { - parentNode.insertBefore(get(futureStartNode), get(currentStartNode)); - } else { - currentNodes[index] = null; - parentNode.insertBefore(get(el), get(currentStartNode)); - } + currentNodes[index] = null; + parentNode.insertBefore(get(el), get(currentStartNode)); futureStartNode = futureNodes[++futureStart]; } } @@ -77,14 +70,14 @@ beforeNode // optional item/node to use as insertBefore delimiter var place = pin != null ? get(pin) : before; while (futureStart <= futureEnd) { var ch = futureNodes[futureStart++]; - // until I am sure the else could never happen - // it might be a vDOM thing 'cause it never happens here + // ignore until I am sure the else could never happen. + // it might be a vDOM thing 'cause it never happens here. /* istanbul ignore else */ if (ch != null) parentNode.insertBefore(get(ch), place); } } - // until I am sure the else could never happen - // it might be a vDOM thing 'cause it never happens here + // ignore until I am sure the else could never happen. + // it might be a vDOM thing 'cause it never happens here. /* istanbul ignore else */ else if (futureStart > futureEnd) { while (currentStart <= currentEnd) { @@ -99,4 +92,4 @@ beforeNode // optional item/node to use as insertBefore delimiter return domdiff; -}({})); +}()); diff --git a/min.js b/min.js index 239a5e8..35be8c7 100644 --- a/min.js +++ b/min.js @@ -1,2 +1,2 @@ -var domdiff=function(e){"use strict";/*! (c) 2017 Andrea Giammarchi (ISC) */ -var l=function(e){return e};return function(e,r,n,f,i){for(var s=f||l,t=null==i?null:s(i),u=0,o=0,v=r.length-1,a=r[0],B=r[v],c=n.length-1,d=n[0],g=n[c];u<=v&&o<=c;)if(null==a)a=r[++u];else if(null==B)B=r[--v];else if(null==d)d=n[++o];else if(null==g)g=n[--c];else if(a==d)a=r[++u],d=n[++o];else if(B==g)B=r[--v],g=n[--c];else if(a==g)e.insertBefore(s(a),s(B).nextSibling||t),a=r[++u],g=n[--c];else if(B==d)e.insertBefore(s(B),s(a)),B=r[--v],d=n[++o];else{var h=r.indexOf(d);if(h<0)e.insertBefore(s(d),s(a)),d=n[++o];else{var m=r[h];m!=d?e.insertBefore(s(d),s(a)):(r[h]=null,e.insertBefore(s(m),s(a))),d=n[++o]}}if(u>v)for(var x=n[c+1],b=null!=x?s(x):t;o<=c;){var C=n[o++];null!=C&&e.insertBefore(s(C),b)}else if(o>c)for(;u<=v;){var O=r[u++];null!=O&&e.removeChild(s(O))}return n}}(); \ No newline at end of file +var domdiff=function(){"use strict";/*! (c) 2017 Andrea Giammarchi (ISC) */ +var e=function(e){return e};return function(l,n,r,f,i){for(var s=f||e,u=null==i?null:s(i),t=0,o=0,v=n.length-1,a=n[0],B=n[v],c=r.length-1,d=r[0],g=r[c];t<=v&&o<=c;)if(null==a)a=n[++t];else if(null==B)B=n[--v];else if(null==d)d=r[++o];else if(null==g)g=r[--c];else if(a==d)a=n[++t],d=r[++o];else if(B==g)B=n[--v],g=r[--c];else if(a==g)l.insertBefore(s(a),s(B).nextSibling||u),a=n[++t],g=r[--c];else if(B==d)l.insertBefore(s(B),s(a)),B=n[--v],d=r[++o];else{var h=n.indexOf(d);if(h<0)l.insertBefore(s(d),s(a)),d=r[++o];else{var m=n[h];n[h]=null,l.insertBefore(s(m),s(a)),d=r[++o]}}if(t>v)for(var x=r[c+1],b=null!=x?s(x):u;o<=c;){var C=r[o++];null!=C&&l.insertBefore(s(C),b)}else if(o>c)for(;t<=v;){var O=n[t++];null!=O&&l.removeChild(s(O))}return r}}(); \ No newline at end of file diff --git a/package.json b/package.json index 2ef703f..3f42ddb 100644 --- a/package.json +++ b/package.json @@ -8,7 +8,7 @@ "scripts": { "build": "npm run cjs && npm run bundle && npm run min && npm run test && npm run size", "bundle": "rollup --config rollup.config.js && npm run cleanup", - "cleanup": "echo \"$(cat index.js | sed 's/return exports;/return domdiff;/' | sed -e 's/exports.*;//g')\" > index.js", + "cleanup": "echo \"$(cat index.js | sed 's/return exports;/return domdiff;/' | sed -e 's/exports.*;//g' | sed 's/exports//' | sed 's/}({}));/}());/')\" > index.js", "cjs": "ascjs ./esm ./cjs", "coveralls": "cat ./coverage/lcov.info | coveralls", "min": "uglifyjs index.js --support-ie8 --comments=/^!/ -cmo min.js", diff --git a/test/test.js b/test/test.js index e179b39..29b2646 100644 --- a/test/test.js +++ b/test/test.js @@ -896,3 +896,5 @@ newState = domdiff( [nodes.a, nodes.b, nodes.c, nodes.d, nodes.e, nodes.f].reverse() ); compare(newState, 'fedcba'); + +tressa.end(); From e10cbda0cf28d727463418e1f4d3b07d2b5d6699 Mon Sep 17 00:00:00 2001 From: Andrea Giammarchi Date: Mon, 4 Dec 2017 17:47:10 -0200 Subject: [PATCH 05/71] 0.1.5 --- package.json | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/package.json b/package.json index 3f42ddb..9bd8c82 100644 --- a/package.json +++ b/package.json @@ -1,6 +1,6 @@ { "name": "domdiff", - "version": "0.1.4", + "version": "0.1.5", "description": "A fast and simple way to diff childNodes", "browser": "min.js", "main": "cjs/index.js", From d5d886d67da85d44c3892d5b0223979236c4ffaa Mon Sep 17 00:00:00 2001 From: Andrea Giammarchi Date: Tue, 5 Dec 2017 04:58:05 -0200 Subject: [PATCH 06/71] added second getNode(item, info) parameter + README --- README.md | 91 ++++++++++++++++++++++++++ cjs/index.js | 24 +++---- coverage/coverage.json | 2 +- coverage/lcov-report/cjs/index.html | 6 +- coverage/lcov-report/cjs/index.js.html | 28 ++++---- coverage/lcov-report/index.html | 6 +- coverage/lcov.info | 34 +++++----- esm/index.js | 24 +++---- index.js | 16 ++--- min.js | 2 +- 10 files changed, 161 insertions(+), 72 deletions(-) diff --git a/README.md b/README.md index c4229aa..85085f0 100644 --- a/README.md +++ b/README.md @@ -56,3 +56,94 @@ parentNode.textContent; ### Compatibility: Every. JavaScript. Engine. + + +### A `getNode` callback for complex data + +The `getNode(item, info)` is invoked per each operation on the DOM. + +This can be useful to represent node through wrappers, whenever that is needed. + +The passed `info` value can be: + + * `1` when the item/node is being appended + * `0` when the item/node is being used as insert _before_ reference + * `-0` when the item/node is being used as insert _after_ reference + * `-1` when the item/node is being removed + +```js +function getNode(item, i) { + // case removal or case after + if ((1 / i) < 0) { + // case removal + if (i) { + // if the item has more than a node + // remove all other nodes at once + if (item.length > 1) { + const range = document.createRange(); + range.setStartBefore(item[1]); + range.setEndAfter(item[item.length - 1]); + debugger; + range.deleteContents(); + } + // return the first node to be removed + return item[0]; + } + // case after + else { + return item[item.length - 1]; + } + } + // case insert + else if (i) { + const fragment = document.createDocumentFragment(); + fragment.append(...item); + return fragment; + } + // case before + else { + return item[0]; + } +} + +const and = [document.createTextNode(' & ')]; + +const Bob = [ + document.createTextNode('B'), + document.createTextNode('o'), + document.createTextNode('b') +]; + +const Lucy = [ + document.createTextNode('L'), + document.createTextNode('u'), + document.createTextNode('c'), + document.createTextNode('y') +]; + +// clean the body for demo purpose +document.body.textContent = ''; +let content = domdiff( + document.body, + [], + [Bob, and, Lucy], + getNode +); + +// ... later on ... +content = domdiff( + document.body, + content, + [Lucy, and, Bob], + getNode +); + +// clean up +domdiff( + document.body, + content, + [], + getNode +); + +``` diff --git a/cjs/index.js b/cjs/index.js index 548a418..f5c6a6d 100644 --- a/cjs/index.js +++ b/cjs/index.js @@ -17,7 +17,7 @@ const domdiff = ( beforeNode // optional item/node to use as insertBefore delimiter ) => { const get = getNode || identity; - const before = beforeNode == null ? null : get(beforeNode); + const before = beforeNode == null ? null : get(beforeNode, 0); let currentStart = 0, futureStart = 0; let currentEnd = currentNodes.length - 1; let currentStartNode = currentNodes[0]; @@ -48,16 +48,16 @@ const domdiff = ( } else if (currentStartNode == futureEndNode) { parentNode.insertBefore( - get(currentStartNode), - get(currentEndNode).nextSibling || before + get(currentStartNode, 1), + get(currentEndNode, -0).nextSibling ); currentStartNode = currentNodes[++currentStart]; futureEndNode = futureNodes[--futureEnd]; } else if (currentEndNode == futureStartNode) { parentNode.insertBefore( - get(currentEndNode), - get(currentStartNode) + get(currentEndNode, 1), + get(currentStartNode, 0) ); currentEndNode = currentNodes[--currentEnd]; futureStartNode = futureNodes[++futureStart]; @@ -66,8 +66,8 @@ const domdiff = ( let index = currentNodes.indexOf(futureStartNode); if (index < 0) { parentNode.insertBefore( - get(futureStartNode), - get(currentStartNode) + get(futureStartNode, 1), + get(currentStartNode, 0) ); futureStartNode = futureNodes[++futureStart]; } @@ -75,8 +75,8 @@ const domdiff = ( let el = currentNodes[index]; currentNodes[index] = null; parentNode.insertBefore( - get(el), - get(currentStartNode) + get(el, 1), + get(currentStartNode, 0) ); futureStartNode = futureNodes[++futureStart]; } @@ -84,13 +84,13 @@ const domdiff = ( } if (currentStart > currentEnd) { const pin = futureNodes[futureEnd + 1]; - const place = pin != null ? get(pin) : before; + const place = pin != null ? get(pin, 0) : before; while (futureStart <= futureEnd) { const ch = futureNodes[futureStart++]; // ignore until I am sure the else could never happen. // it might be a vDOM thing 'cause it never happens here. /* istanbul ignore else */ - if (ch != null) parentNode.insertBefore(get(ch), place); + if (ch != null) 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diff --git a/coverage/lcov.info b/coverage/lcov.info index 37f4467..5e48c6e 100644 --- a/coverage/lcov.info +++ b/coverage/lcov.info @@ -78,22 +78,20 @@ BRDA:45,9,0,50 BRDA:45,9,1,175 BRDA:49,10,0,52 BRDA:49,10,1,123 -BRDA:52,11,0,52 -BRDA:52,11,1,9 -BRDA:57,12,0,27 -BRDA:57,12,1,96 -BRDA:67,13,0,52 -BRDA:67,13,1,44 -BRDA:85,14,0,52 -BRDA:85,14,1,46 -BRDA:87,15,0,25 -BRDA:87,15,1,27 -BRDA:93,16,0,63 -BRDA:93,16,1,0 -BRDA:99,17,0,46 -BRDA:99,17,1,0 -BRDA:102,18,0,100 -BRDA:102,18,1,16 -BRF:36 -BRH:36 +BRDA:57,11,0,27 +BRDA:57,11,1,96 +BRDA:67,12,0,52 +BRDA:67,12,1,44 +BRDA:85,13,0,52 +BRDA:85,13,1,46 +BRDA:87,14,0,25 +BRDA:87,14,1,27 +BRDA:93,15,0,63 +BRDA:93,15,1,0 +BRDA:99,16,0,46 +BRDA:99,16,1,0 +BRDA:102,17,0,100 +BRDA:102,17,1,16 +BRF:34 +BRH:34 end_of_record diff --git a/esm/index.js b/esm/index.js index c7b547f..f4d2977 100644 --- a/esm/index.js +++ b/esm/index.js @@ -16,7 +16,7 @@ const domdiff = ( beforeNode // optional item/node to use as insertBefore delimiter ) => { const get = getNode || identity; - const before = beforeNode == null ? null : get(beforeNode); + const before = beforeNode == null ? null : get(beforeNode, 0); let currentStart = 0, futureStart = 0; let currentEnd = currentNodes.length - 1; let currentStartNode = currentNodes[0]; @@ -47,16 +47,16 @@ const domdiff = ( } else if (currentStartNode == futureEndNode) { parentNode.insertBefore( - get(currentStartNode), - get(currentEndNode).nextSibling || before + get(currentStartNode, 1), + get(currentEndNode, -0).nextSibling ); currentStartNode = currentNodes[++currentStart]; futureEndNode = futureNodes[--futureEnd]; } else if (currentEndNode == futureStartNode) { parentNode.insertBefore( - get(currentEndNode), - get(currentStartNode) + get(currentEndNode, 1), + get(currentStartNode, 0) ); currentEndNode = currentNodes[--currentEnd]; futureStartNode = futureNodes[++futureStart]; @@ -65,8 +65,8 @@ const domdiff = ( let index = currentNodes.indexOf(futureStartNode); if (index < 0) { parentNode.insertBefore( - get(futureStartNode), - get(currentStartNode) + get(futureStartNode, 1), + get(currentStartNode, 0) ); futureStartNode = futureNodes[++futureStart]; } @@ -74,8 +74,8 @@ const domdiff = ( let el = currentNodes[index]; currentNodes[index] = null; parentNode.insertBefore( - get(el), - get(currentStartNode) + get(el, 1), + get(currentStartNode, 0) ); futureStartNode = futureNodes[++futureStart]; } @@ -83,13 +83,13 @@ const domdiff = ( } if (currentStart > currentEnd) { const pin = futureNodes[futureEnd + 1]; - const place = pin != null ? get(pin) : before; + const place = pin != null ? get(pin, 0) : before; while (futureStart <= futureEnd) { const ch = futureNodes[futureStart++]; // ignore until I am sure the else could never happen. // it might be a vDOM thing 'cause it never happens here. /* istanbul ignore else */ - if (ch != null) parentNode.insertBefore(get(ch), place); + if (ch != null) parentNode.insertBefore(get(ch, 1), place); } } // ignore until I am sure the else could never happen. @@ -98,7 +98,7 @@ const domdiff = ( else if (futureStart > futureEnd) { while (currentStart <= currentEnd) { const ch = currentNodes[currentStart++]; - if (ch != null) parentNode.removeChild(get(ch)); + if (ch != null) parentNode.removeChild(get(ch, -1)); } } return futureNodes; diff --git a/index.js b/index.js index 0b9ef5f..076738e 100644 --- a/index.js +++ b/index.js @@ -20,7 +20,7 @@ getNode, // optional way to retrieve a node from an item beforeNode // optional item/node to use as insertBefore delimiter ) { var get = getNode || identity; - var before = beforeNode == null ? null : get(beforeNode); + var before = beforeNode == null ? null : get(beforeNode, 0); var currentStart = 0, futureStart = 0; var currentEnd = currentNodes.length - 1; @@ -45,35 +45,35 @@ beforeNode // optional item/node to use as insertBefore delimiter currentEndNode = currentNodes[--currentEnd]; futureEndNode = futureNodes[--futureEnd]; } else if (currentStartNode == futureEndNode) { - parentNode.insertBefore(get(currentStartNode), get(currentEndNode).nextSibling || before); + parentNode.insertBefore(get(currentStartNode, 1), get(currentEndNode, -0).nextSibling); currentStartNode = currentNodes[++currentStart]; futureEndNode = futureNodes[--futureEnd]; } else if (currentEndNode == futureStartNode) { - parentNode.insertBefore(get(currentEndNode), get(currentStartNode)); + parentNode.insertBefore(get(currentEndNode, 1), get(currentStartNode, 0)); currentEndNode = currentNodes[--currentEnd]; futureStartNode = futureNodes[++futureStart]; } else { var index = currentNodes.indexOf(futureStartNode); if (index < 0) { - parentNode.insertBefore(get(futureStartNode), get(currentStartNode)); + parentNode.insertBefore(get(futureStartNode, 1), get(currentStartNode, 0)); futureStartNode = futureNodes[++futureStart]; } else { var el = currentNodes[index]; currentNodes[index] = null; - parentNode.insertBefore(get(el), get(currentStartNode)); + parentNode.insertBefore(get(el, 1), get(currentStartNode, 0)); futureStartNode = futureNodes[++futureStart]; } } } if (currentStart > currentEnd) { var pin = futureNodes[futureEnd + 1]; - var place = pin != null ? get(pin) : before; + var place = pin != null ? get(pin, 0) : before; while (futureStart <= futureEnd) { var ch = futureNodes[futureStart++]; // ignore until I am sure the else could never happen. // it might be a vDOM thing 'cause it never happens here. /* istanbul ignore else */ - if (ch != null) parentNode.insertBefore(get(ch), place); + if (ch != null) parentNode.insertBefore(get(ch, 1), place); } } // ignore until I am sure the else could never happen. @@ -82,7 +82,7 @@ beforeNode // optional item/node to use as insertBefore delimiter else if (futureStart > futureEnd) { while (currentStart <= currentEnd) { var _ch = currentNodes[currentStart++]; - if (_ch != null) parentNode.removeChild(get(_ch)); + if (_ch != null) parentNode.removeChild(get(_ch, -1)); } } return futureNodes; diff --git a/min.js b/min.js index 35be8c7..a9992de 100644 --- a/min.js +++ b/min.js @@ -1,2 +1,2 @@ var domdiff=function(){"use strict";/*! (c) 2017 Andrea Giammarchi (ISC) */ -var e=function(e){return e};return function(l,n,r,f,i){for(var s=f||e,u=null==i?null:s(i),t=0,o=0,v=n.length-1,a=n[0],B=n[v],c=r.length-1,d=r[0],g=r[c];t<=v&&o<=c;)if(null==a)a=n[++t];else if(null==B)B=n[--v];else if(null==d)d=r[++o];else if(null==g)g=r[--c];else if(a==d)a=n[++t],d=r[++o];else if(B==g)B=n[--v],g=r[--c];else if(a==g)l.insertBefore(s(a),s(B).nextSibling||u),a=n[++t],g=r[--c];else if(B==d)l.insertBefore(s(B),s(a)),B=n[--v],d=r[++o];else{var h=n.indexOf(d);if(h<0)l.insertBefore(s(d),s(a)),d=r[++o];else{var m=n[h];n[h]=null,l.insertBefore(s(m),s(a)),d=r[++o]}}if(t>v)for(var x=r[c+1],b=null!=x?s(x):u;o<=c;){var C=r[o++];null!=C&&l.insertBefore(s(C),b)}else if(o>c)for(;t<=v;){var O=n[t++];null!=O&&l.removeChild(s(O))}return r}}(); \ No newline at end of file +var e=function(e){return e};return function(l,n,r,f,i){for(var s=f||e,u=null==i?null:s(i,0),t=0,o=0,v=n.length-1,a=n[0],B=n[v],c=r.length-1,d=r[0],g=r[c];t<=v&&o<=c;)if(null==a)a=n[++t];else if(null==B)B=n[--v];else if(null==d)d=r[++o];else if(null==g)g=r[--c];else if(a==d)a=n[++t],d=r[++o];else if(B==g)B=n[--v],g=r[--c];else if(a==g)l.insertBefore(s(a,1),s(B,-0).nextSibling),a=n[++t],g=r[--c];else if(B==d)l.insertBefore(s(B,1),s(a,0)),B=n[--v],d=r[++o];else{var h=n.indexOf(d);if(h<0)l.insertBefore(s(d,1),s(a,0)),d=r[++o];else{var m=n[h];n[h]=null,l.insertBefore(s(m,1),s(a,0)),d=r[++o]}}if(t>v)for(var x=r[c+1],b=null!=x?s(x,0):u;o<=c;){var C=r[o++];null!=C&&l.insertBefore(s(C,1),b)}else if(o>c)for(;t<=v;){var O=n[t++];null!=O&&l.removeChild(s(O,-1))}return r}}(); \ No newline at end of file From c6a77da623d1fb1959268b7a77168c8a43b72dfd Mon Sep 17 00:00:00 2001 From: Andrea Giammarchi Date: Tue, 5 Dec 2017 04:58:08 -0200 Subject: [PATCH 07/71] 0.2.0 --- package.json | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/package.json b/package.json index 9bd8c82..498fe72 100644 --- a/package.json +++ b/package.json @@ -1,6 +1,6 @@ { "name": "domdiff", - "version": "0.1.5", + "version": "0.2.0", "description": "A fast and simple way to diff childNodes", "browser": "min.js", "main": "cjs/index.js", From a5d31f138176b505853f7348e99f02b3cea30a9f Mon Sep 17 00:00:00 2001 From: Andrea Giammarchi Date: Tue, 5 Dec 2017 05:50:05 -0200 Subject: [PATCH 08/71] removed debugger from README --- README.md | 1 - 1 file changed, 1 deletion(-) diff --git a/README.md b/README.md index 85085f0..b1614bf 100644 --- a/README.md +++ b/README.md @@ -83,7 +83,6 @@ function getNode(item, i) { const range = document.createRange(); range.setStartBefore(item[1]); range.setEndAfter(item[item.length - 1]); - debugger; range.deleteContents(); } // return the first node to be removed From d9b2111c1bcb446032a9db0c0af111184d7a750a Mon Sep 17 00:00:00 2001 From: Andrea Giammarchi Date: Tue, 5 Dec 2017 09:41:42 -0200 Subject: [PATCH 09/71] added CodePen example --- README.md | 2 ++ coverage/lcov-report/cjs/index.html | 2 +- coverage/lcov-report/cjs/index.js.html | 2 +- coverage/lcov-report/index.html | 2 +- 4 files changed, 5 insertions(+), 3 deletions(-) diff --git a/README.md b/README.md index b1614bf..627f5a7 100644 --- a/README.md +++ b/README.md @@ -71,6 +71,8 @@ The passed `info` value can be: * `-0` when the item/node is being used as insert _after_ reference * `-1` when the item/node is being removed +[Example](https://codepen.io/WebReflection/pen/bYJVPd?editors=0010) + ```js function getNode(item, i) { // case removal or case after diff --git a/coverage/lcov-report/cjs/index.html b/coverage/lcov-report/cjs/index.html index d31dcd0..fd49e3d 100644 --- a/coverage/lcov-report/cjs/index.html +++ b/coverage/lcov-report/cjs/index.html @@ -81,7 +81,7 @@

Code coverage - generated by istanbul at Tue Dec 05 2017 04:57:46 GMT-0200 (-02) + generated by istanbul at Tue Dec 05 2017 05:53:29 GMT-0200 (-02)
diff --git a/coverage/lcov-report/cjs/index.js.html b/coverage/lcov-report/cjs/index.js.html index 9ef76d1..b5f6995 100644 --- a/coverage/lcov-report/cjs/index.js.html +++ b/coverage/lcov-report/cjs/index.js.html @@ -377,7 +377,7 @@

Code coverage - generated by istanbul at Tue Dec 05 2017 04:57:46 GMT-0200 (-02) + generated by istanbul at Tue Dec 05 2017 05:53:29 GMT-0200 (-02)
diff --git a/coverage/lcov-report/index.html b/coverage/lcov-report/index.html index ea66d67..b5d15fc 100644 --- a/coverage/lcov-report/index.html +++ b/coverage/lcov-report/index.html @@ -81,7 +81,7 @@

Code coverage - generated by istanbul at Tue Dec 05 2017 04:57:46 GMT-0200 (-02) + generated by istanbul at Tue Dec 05 2017 05:53:29 GMT-0200 (-02)
From 8825ee0c675e0bf7818a369e52e4f67c70cc5bfd Mon Sep 17 00:00:00 2001 From: Andrea Giammarchi Date: Wed, 6 Dec 2017 11:45:47 -0200 Subject: [PATCH 10/71] extreme performance edition --- cjs/index.js | 42 +++++++-- coverage/coverage.json | 2 +- coverage/lcov-report/cjs/index.html | 22 ++--- coverage/lcov-report/cjs/index.js.html | 118 ++++++++++++++++++++----- coverage/lcov-report/index.html | 22 ++--- coverage/lcov.info | 74 +++++++++++----- esm/index.js | 42 +++++++-- index.js | 46 ++++++++-- min.js | 2 +- test/node.js | 17 ++++ 10 files changed, 290 insertions(+), 97 deletions(-) diff --git a/cjs/index.js b/cjs/index.js index f5c6a6d..fc52de5 100644 --- a/cjs/index.js +++ b/cjs/index.js @@ -83,23 +83,47 @@ const domdiff = ( } } if (currentStart > currentEnd) { - const pin = futureNodes[futureEnd + 1]; - const place = pin != null ? get(pin, 0) : before; - while (futureStart <= futureEnd) { - const ch = futureNodes[futureStart++]; + if (futureStart <= futureEnd) { + const pin = futureNodes[futureEnd + 1]; + const place = pin == null ? before : get(pin, 0); + while (futureNodes[futureStart] == null) futureStart++; + while (futureNodes[futureEnd] == null) futureEnd--; + if (futureStart === futureEnd && futureNodes[futureStart] != null) { + parentNode.insertBefore(get(futureNodes[futureStart], 1), place); + } // ignore until I am sure the else could never happen. // it might be a vDOM thing 'cause it never happens here. /* istanbul ignore else */ - if (ch != null) parentNode.insertBefore(get(ch, 1), place); + else if (futureStart < futureEnd) { + const fragment = parentNode.ownerDocument.createDocumentFragment(); + while (futureStart <= futureEnd) { + const node = futureNodes[futureStart++]; + // ignore until I am sure the else could never happen. + // it might be a vDOM thing 'cause it never happens here. + /* istanbul ignore else */ + if (node != null) fragment.appendChild(get(node, 1)); + } + parentNode.insertBefore(fragment, place); + } } } // ignore until I am sure the else could never happen. // it might be a vDOM thing 'cause it never happens here. /* istanbul ignore else */ - else if (futureStart > futureEnd) { - while (currentStart <= currentEnd) { - const ch = currentNodes[currentStart++]; - if (ch != null) parentNode.removeChild(get(ch, -1)); + else if (futureStart > futureEnd && currentStart <= currentEnd) { + while (currentNodes[currentStart] == null) currentStart++; + while (currentNodes[currentEnd] == null) currentEnd--; + if (currentStart === currentEnd && currentNodes[currentStart] != null) { + parentNode.removeChild(get(currentNodes[currentStart], -1)); + } + // ignore until I am sure the else could never happen. + // it might be a vDOM thing 'cause it never happens here. + /* istanbul ignore else */ + else if (currentStart < currentEnd) { + const range = parentNode.ownerDocument.createRange(); + range.setStartBefore(get(currentNodes[currentStart], -1)); + range.setEndAfter(get(currentNodes[currentEnd], -1)); + 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diff --git a/coverage/lcov.info b/coverage/lcov.info index 5e48c6e..518e89d 100644 --- a/coverage/lcov.info +++ b/coverage/lcov.info @@ -2,7 +2,7 @@ TN: SF:/home/webreflection/code/domdiff/cjs/index.js FNF:0 FNH:0 -DA:10,569 +DA:10,528 DA:12,1 DA:19,98 DA:20,98 @@ -46,18 +46,32 @@ DA:77,44 DA:81,44 DA:85,98 DA:86,52 -DA:87,52 -DA:88,52 -DA:89,63 -DA:93,63 -DA:99,46 -DA:100,46 -DA:101,116 -DA:102,116 -DA:105,98 -DA:108,1 -LF:54 -LH:54 +DA:87,31 +DA:88,31 +DA:89,31 +DA:90,31 +DA:91,31 +DA:92,15 +DA:97,16 +DA:98,16 +DA:99,16 +DA:100,48 +DA:104,48 +DA:106,16 +DA:113,46 +DA:114,46 +DA:115,46 +DA:116,46 +DA:117,23 +DA:122,23 +DA:123,23 +DA:124,23 +DA:125,23 +DA:126,23 +DA:129,98 +DA:132,1 +LF:68 +LH:68 BRDA:19,1,0,98 BRDA:19,1,1,96 BRDA:20,2,0,50 @@ -84,14 +98,28 @@ BRDA:67,12,0,52 BRDA:67,12,1,44 BRDA:85,13,0,52 BRDA:85,13,1,46 -BRDA:87,14,0,25 -BRDA:87,14,1,27 -BRDA:93,15,0,63 -BRDA:93,15,1,0 -BRDA:99,16,0,46 -BRDA:99,16,1,0 -BRDA:102,17,0,100 -BRDA:102,17,1,16 -BRF:34 -BRH:34 +BRDA:86,14,0,31 +BRDA:86,14,1,21 +BRDA:88,15,0,22 +BRDA:88,15,1,9 +BRDA:91,16,0,15 +BRDA:91,16,1,16 +BRDA:91,17,0,31 +BRDA:91,17,1,15 +BRDA:97,18,0,16 +BRDA:97,18,1,0 +BRDA:104,19,0,48 +BRDA:104,19,1,0 +BRDA:113,20,0,46 +BRDA:113,20,1,0 +BRDA:113,21,0,46 +BRDA:113,21,1,46 +BRDA:116,22,0,23 +BRDA:116,22,1,23 +BRDA:116,23,0,46 +BRDA:116,23,1,23 +BRDA:122,24,0,23 +BRDA:122,24,1,0 +BRF:48 +BRH:48 end_of_record diff --git a/esm/index.js b/esm/index.js index f4d2977..14521e6 100644 --- a/esm/index.js +++ b/esm/index.js @@ -82,23 +82,47 @@ const domdiff = ( } } if (currentStart > currentEnd) { - const pin = futureNodes[futureEnd + 1]; - const place = pin != null ? get(pin, 0) : before; - while (futureStart <= futureEnd) { - const ch = futureNodes[futureStart++]; + if (futureStart <= futureEnd) { + const pin = futureNodes[futureEnd + 1]; + const place = pin == null ? before : get(pin, 0); + while (futureNodes[futureStart] == null) futureStart++; + while (futureNodes[futureEnd] == null) futureEnd--; + if (futureStart === futureEnd && futureNodes[futureStart] != null) { + parentNode.insertBefore(get(futureNodes[futureStart], 1), place); + } // ignore until I am sure the else could never happen. // it might be a vDOM thing 'cause it never happens here. /* istanbul ignore else */ - if (ch != null) parentNode.insertBefore(get(ch, 1), place); + else if (futureStart < futureEnd) { + const fragment = parentNode.ownerDocument.createDocumentFragment(); + while (futureStart <= futureEnd) { + const node = futureNodes[futureStart++]; + // ignore until I am sure the else could never happen. + // it might be a vDOM thing 'cause it never happens here. + /* istanbul ignore else */ + if (node != null) fragment.appendChild(get(node, 1)); + } + parentNode.insertBefore(fragment, place); + } } } // ignore until I am sure the else could never happen. // it might be a vDOM thing 'cause it never happens here. /* istanbul ignore else */ - else if (futureStart > futureEnd) { - while (currentStart <= currentEnd) { - const ch = currentNodes[currentStart++]; - if (ch != null) parentNode.removeChild(get(ch, -1)); + else if (futureStart > futureEnd && currentStart <= currentEnd) { + while (currentNodes[currentStart] == null) currentStart++; + while (currentNodes[currentEnd] == null) currentEnd--; + if (currentStart === currentEnd && currentNodes[currentStart] != null) { + parentNode.removeChild(get(currentNodes[currentStart], -1)); + } + // ignore until I am sure the else could never happen. + // it might be a vDOM thing 'cause it never happens here. + /* istanbul ignore else */ + else if (currentStart < currentEnd) { + const range = parentNode.ownerDocument.createRange(); + range.setStartBefore(get(currentNodes[currentStart], -1)); + range.setEndAfter(get(currentNodes[currentEnd], -1)); + range.deleteContents(); } } return futureNodes; diff --git a/index.js b/index.js index 076738e..5717f3e 100644 --- a/index.js +++ b/index.js @@ -66,24 +66,52 @@ beforeNode // optional item/node to use as insertBefore delimiter } } if (currentStart > currentEnd) { - var pin = futureNodes[futureEnd + 1]; - var place = pin != null ? get(pin, 0) : before; - while (futureStart <= futureEnd) { - var ch = futureNodes[futureStart++]; + if (futureStart <= futureEnd) { + var pin = futureNodes[futureEnd + 1]; + var place = pin == null ? before : get(pin, 0); + while (futureNodes[futureStart] == null) { + futureStart++; + }while (futureNodes[futureEnd] == null) { + futureEnd--; + }if (futureStart === futureEnd && futureNodes[futureStart] != null) { + parentNode.insertBefore(get(futureNodes[futureStart], 1), place); + } // ignore until I am sure the else could never happen. // it might be a vDOM thing 'cause it never happens here. /* istanbul ignore else */ - if (ch != null) parentNode.insertBefore(get(ch, 1), place); + else if (futureStart < futureEnd) { + var fragment = parentNode.ownerDocument.createDocumentFragment(); + while (futureStart <= futureEnd) { + var node = futureNodes[futureStart++]; + // ignore until I am sure the else could never happen. + // it might be a vDOM thing 'cause it never happens here. + /* istanbul ignore else */ + if (node != null) fragment.appendChild(get(node, 1)); + } + parentNode.insertBefore(fragment, place); + } } } // ignore until I am sure the else could never happen. // it might be a vDOM thing 'cause it never happens here. /* istanbul ignore else */ - else if (futureStart > futureEnd) { - while (currentStart <= currentEnd) { - var _ch = currentNodes[currentStart++]; - if (_ch != null) parentNode.removeChild(get(_ch, -1)); + else if (futureStart > futureEnd && currentStart <= currentEnd) { + while (currentNodes[currentStart] == null) { + currentStart++; + }while (currentNodes[currentEnd] == null) { + currentEnd--; + }if (currentStart === currentEnd && currentNodes[currentStart] != null) { + parentNode.removeChild(get(currentNodes[currentStart], -1)); } + // ignore until I am sure the else could never happen. + // it might be a vDOM thing 'cause it never happens here. + /* istanbul ignore else */ + else if (currentStart < currentEnd) { + var range = parentNode.ownerDocument.createRange(); + range.setStartBefore(get(currentNodes[currentStart], -1)); + range.setEndAfter(get(currentNodes[currentEnd], -1)); + range.deleteContents(); + } } return futureNodes; }; diff --git a/min.js b/min.js index a9992de..d71a2da 100644 --- a/min.js +++ b/min.js @@ -1,2 +1,2 @@ var domdiff=function(){"use strict";/*! (c) 2017 Andrea Giammarchi (ISC) */ -var e=function(e){return e};return function(l,n,r,f,i){for(var s=f||e,u=null==i?null:s(i,0),t=0,o=0,v=n.length-1,a=n[0],B=n[v],c=r.length-1,d=r[0],g=r[c];t<=v&&o<=c;)if(null==a)a=n[++t];else if(null==B)B=n[--v];else if(null==d)d=r[++o];else if(null==g)g=r[--c];else if(a==d)a=n[++t],d=r[++o];else if(B==g)B=n[--v],g=r[--c];else if(a==g)l.insertBefore(s(a,1),s(B,-0).nextSibling),a=n[++t],g=r[--c];else if(B==d)l.insertBefore(s(B,1),s(a,0)),B=n[--v],d=r[++o];else{var h=n.indexOf(d);if(h<0)l.insertBefore(s(d,1),s(a,0)),d=r[++o];else{var m=n[h];n[h]=null,l.insertBefore(s(m,1),s(a,0)),d=r[++o]}}if(t>v)for(var x=r[c+1],b=null!=x?s(x,0):u;o<=c;){var C=r[o++];null!=C&&l.insertBefore(s(C,1),b)}else if(o>c)for(;t<=v;){var O=n[t++];null!=O&&l.removeChild(s(O,-1))}return r}}(); \ No newline at end of file +var e=function(e){return e};return function(l,n,r,f,i){for(var t=f||e,u=null==i?null:t(i,0),o=0,s=0,a=n.length-1,v=n[0],c=n[a],d=r.length-1,B=r[0],m=r[d];o<=a&&s<=d;)if(null==v)v=n[++o];else if(null==c)c=n[--a];else if(null==B)B=r[++s];else if(null==m)m=r[--d];else if(v==B)v=n[++o],B=r[++s];else if(c==m)c=n[--a],m=r[--d];else if(v==m)l.insertBefore(t(v,1),t(c,-0).nextSibling),v=n[++o],m=r[--d];else if(c==B)l.insertBefore(t(c,1),t(v,0)),c=n[--a],B=r[++s];else{var g=n.indexOf(B);if(g<0)l.insertBefore(t(B,1),t(v,0)),B=r[++s];else{var h=n[g];n[g]=null,l.insertBefore(t(h,1),t(v,0)),B=r[++s]}}if(o>a){if(s<=d){for(var C=r[d+1],D=null==C?u:t(C,0);null==r[s];)s++;for(;null==r[d];)d--;if(s===d&&null!=r[s])l.insertBefore(t(r[s],1),D);else if(sd&&o<=a){for(;null==n[o];)o++;for(;null==n[a];)a--;if(o===a&&null!=n[o])l.removeChild(t(n[o],-1));else if(o Date: Wed, 6 Dec 2017 11:45:51 -0200 Subject: [PATCH 11/71] 0.3.0 --- package.json | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/package.json b/package.json index 498fe72..121256d 100644 --- a/package.json +++ b/package.json @@ -1,6 +1,6 @@ { "name": "domdiff", - "version": "0.2.0", + "version": "0.3.0", "description": "A fast and simple way to diff childNodes", "browser": "min.js", "main": "cjs/index.js", From 9c710a46a2f3fce424dbe3d367d7a09839a41f86 Mon Sep 17 00:00:00 2001 From: Andrea Giammarchi Date: Wed, 6 Dec 2017 13:08:52 -0200 Subject: [PATCH 12/71] toward 100% code coverage --- cjs/index.js | 40 ++---- coverage/coverage.json | 2 +- coverage/lcov-report/cjs/index.html | 24 ++-- coverage/lcov-report/cjs/index.js.html | 90 ++++-------- coverage/lcov-report/index.html | 24 ++-- coverage/lcov.info | 189 ++++++++++++------------- esm/index.js | 40 ++---- index.js | 68 ++++----- min.js | 2 +- test/diff.html | 104 ++++++++++++++ 10 files changed, 294 insertions(+), 289 deletions(-) create mode 100644 test/diff.html diff --git a/cjs/index.js b/cjs/index.js index fc52de5..b0d8319 100644 --- a/cjs/index.js +++ b/cjs/index.js @@ -20,6 +20,7 @@ const domdiff = ( const before = beforeNode == null ? null : get(beforeNode, 0); let currentStart = 0, futureStart = 0; let currentEnd = currentNodes.length - 1; + let currentStartNodeZ = null; let currentStartNode = currentNodes[0]; let currentEndNode = currentNodes[currentEnd]; let futureEnd = futureNodes.length - 1; @@ -27,6 +28,7 @@ const domdiff = ( let futureEndNode = futureNodes[futureEnd]; while (currentStart <= currentEnd && futureStart <= futureEnd) { if (currentStartNode == null) { + currentStartNodeZ = null; currentStartNode = currentNodes[++currentStart]; } else if (currentEndNode == null) { @@ -39,6 +41,7 @@ const domdiff = ( futureEndNode = futureNodes[--futureEnd]; } else if (currentStartNode == futureStartNode) { + currentStartNodeZ = null; currentStartNode = currentNodes[++currentStart]; futureStartNode = futureNodes[++futureStart]; } @@ -51,13 +54,14 @@ const domdiff = ( get(currentStartNode, 1), get(currentEndNode, -0).nextSibling ); + currentStartNodeZ = null; currentStartNode = currentNodes[++currentStart]; futureEndNode = futureNodes[--futureEnd]; } else if (currentEndNode == futureStartNode) { parentNode.insertBefore( get(currentEndNode, 1), - get(currentStartNode, 0) + currentStartNodeZ || (currentStartNodeZ = get(currentStartNode, 0)) ); currentEndNode = currentNodes[--currentEnd]; futureStartNode = futureNodes[++futureStart]; @@ -67,7 +71,7 @@ const domdiff = ( if (index < 0) { parentNode.insertBefore( get(futureStartNode, 1), - get(currentStartNode, 0) + currentStartNodeZ || (currentStartNodeZ = get(currentStartNode, 0)) ); futureStartNode = futureNodes[++futureStart]; } @@ -76,7 +80,7 @@ const domdiff = ( currentNodes[index] = null; parentNode.insertBefore( get(el, 1), - get(currentStartNode, 0) + currentStartNodeZ || (currentStartNodeZ = get(currentStartNode, 0)) ); futureStartNode = futureNodes[++futureStart]; } @@ -86,40 +90,24 @@ const domdiff = ( if (futureStart <= futureEnd) { const pin = futureNodes[futureEnd + 1]; const place = pin == null ? before : get(pin, 0); - while (futureNodes[futureStart] == null) futureStart++; - while (futureNodes[futureEnd] == null) futureEnd--; - if (futureStart === futureEnd && futureNodes[futureStart] != null) { + if (futureStart === futureEnd) { parentNode.insertBefore(get(futureNodes[futureStart], 1), place); } - // ignore until I am sure the else could never happen. - // it might be a vDOM thing 'cause it never happens here. - /* istanbul ignore else */ - else if (futureStart < futureEnd) { + else { const fragment = parentNode.ownerDocument.createDocumentFragment(); while (futureStart <= futureEnd) { - const node = futureNodes[futureStart++]; - // ignore until I am sure the else could never happen. - // it might be a vDOM thing 'cause it never happens here. - /* istanbul ignore else */ - if (node != null) fragment.appendChild(get(node, 1)); + fragment.appendChild(get(futureNodes[futureStart++], 1)); } parentNode.insertBefore(fragment, place); } } } - // ignore until I am sure the else could never happen. - // it might be a vDOM thing 'cause it never happens here. - /* istanbul ignore else */ - else if (futureStart > futureEnd && currentStart <= currentEnd) { - while (currentNodes[currentStart] == null) currentStart++; - while (currentNodes[currentEnd] == null) currentEnd--; - if (currentStart === currentEnd && currentNodes[currentStart] != null) { + else { + while (currentStart <= currentEnd && currentNodes[currentStart] == null) currentStart++; + if (currentStart === currentEnd) { parentNode.removeChild(get(currentNodes[currentStart], -1)); } - // ignore until I am sure the else could never happen. - // it might be a vDOM thing 'cause it never happens here. - /* istanbul ignore else */ - else if (currentStart < currentEnd) { + else { const range = parentNode.ownerDocument.createRange(); range.setStartBefore(get(currentNodes[currentStart], -1)); range.setEndAfter(get(currentNodes[currentEnd], -1)); diff --git a/coverage/coverage.json b/coverage/coverage.json index 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let futureEndNode = futureNodes[futureEnd]; while (currentStart <= currentEnd && futureStart <= futureEnd) { if (currentStartNode == null) { + currentStartNodeZ = null; currentStartNode = currentNodes[++currentStart]; } else if (currentEndNode == null) { @@ -352,6 +326,7 @@

futureEndNode = futureNodes[--futureEnd]; } else if (currentStartNode == futureStartNode) { + currentStartNodeZ = null; currentStartNode = currentNodes[++currentStart]; futureStartNode = futureNodes[++futureStart]; } @@ -364,13 +339,14 @@

get(currentStartNode, 1), get(currentEndNode, -0).nextSibling ); + currentStartNodeZ = null; currentStartNode = currentNodes[++currentStart]; futureEndNode = futureNodes[--futureEnd]; } else if (currentEndNode == futureStartNode) { parentNode.insertBefore( get(currentEndNode, 1), - get(currentStartNode, 0) + currentStartNodeZ || (currentStartNodeZ = get(currentStartNode, 0)) ); currentEndNode = currentNodes[--currentEnd]; futureStartNode = futureNodes[++futureStart]; @@ -380,7 +356,7 @@

if (index < 0) { parentNode.insertBefore( get(futureStartNode, 1), - get(currentStartNode, 0) + currentStartNodeZ || (currentStartNodeZ = get(currentStartNode, 0)) ); futureStartNode = futureNodes[++futureStart]; } @@ -389,7 +365,7 @@

currentNodes[index] = null; parentNode.insertBefore( get(el, 1), - get(currentStartNode, 0) + currentStartNodeZ || (currentStartNodeZ = get(currentStartNode, 0)) ); futureStartNode = futureNodes[++futureStart]; } @@ -399,40 +375,24 @@

if (futureStart <= futureEnd) { const pin = futureNodes[futureEnd + 1]; const place = pin == null ? before : get(pin, 0); - while (futureNodes[futureStart] == null) futureStart++; - while (futureNodes[futureEnd] == null) futureEnd--; - if (futureStart === futureEnd && futureNodes[futureStart] != null) { + if (futureStart === futureEnd) { parentNode.insertBefore(get(futureNodes[futureStart], 1), place); } - // ignore until I am sure the else could never happen. - // it might be a vDOM thing 'cause it never happens here. - /* istanbul ignore else */ - else Eif (futureStart < futureEnd) { + else { const fragment = parentNode.ownerDocument.createDocumentFragment(); while (futureStart <= futureEnd) { - const node = futureNodes[futureStart++]; - // ignore until I am sure the else could never happen. - // it might be a vDOM thing 'cause it never happens here. - /* istanbul ignore else */ - Eif (node != null) fragment.appendChild(get(node, 1)); + fragment.appendChild(get(futureNodes[futureStart++], 1)); } parentNode.insertBefore(fragment, place); } } } - // ignore until I am sure the else could never happen. - // it might be a vDOM thing 'cause it never happens here. - /* istanbul ignore else */ - else Eif (futureStart > futureEnd && currentStart <= currentEnd) { - while (currentNodes[currentStart] == null) currentStart++; - while (currentNodes[currentEnd] == null) currentEnd--; - if (currentStart === currentEnd && currentNodes[currentStart] != null) { + else { + while (currentStart <= currentEnd && currentNodes[currentStart] == null) currentStart++; + if (currentStart === currentEnd) { parentNode.removeChild(get(currentNodes[currentStart], -1)); } - // ignore until I am sure the else could never happen. - // it might be a vDOM thing 'cause it never happens here. - /* istanbul ignore else */ - else Eif (currentStart < currentEnd) { + else { const range = parentNode.ownerDocument.createRange(); range.setStartBefore(get(currentNodes[currentStart], -1)); range.setEndAfter(get(currentNodes[currentEnd], -1)); @@ -449,7 +409,7 @@

Code coverage - generated by istanbul at Wed Dec 06 2017 11:44:48 GMT-0200 (-02) + generated by istanbul at Wed Dec 06 2017 13:08:42 GMT-0200 (-02)
diff --git a/coverage/lcov-report/index.html b/coverage/lcov-report/index.html index 4c15547..233baed 100644 --- a/coverage/lcov-report/index.html +++ b/coverage/lcov-report/index.html @@ -20,14 +20,14 @@

- 95.95% + 100% Statements - 71/74 + 67/67
100% Branches - 48/48 + 42/42
100% @@ -37,11 +37,7 @@

100% Lines - 68/68 -
-
- 4 branches - Ignored      + 65/65

@@ -64,15 +60,15 @@

cjs/ -
- 95.95% - 71/74 +
+ 100% + 67/67 100% - 48/48 + 42/42 100% 0/0 100% - 68/68 + 65/65 @@ -81,7 +77,7 @@

Code coverage - generated by istanbul at Wed Dec 06 2017 11:44:48 GMT-0200 (-02) + generated by istanbul at Wed Dec 06 2017 13:08:42 GMT-0200 (-02)
diff --git a/coverage/lcov.info b/coverage/lcov.info index 518e89d..1ef403a 100644 --- a/coverage/lcov.info +++ b/coverage/lcov.info @@ -2,7 +2,7 @@ TN: SF:/home/webreflection/code/domdiff/cjs/index.js FNF:0 FNH:0 -DA:10,528 +DA:10,467 DA:12,1 DA:19,98 DA:20,98 @@ -14,112 +14,103 @@ DA:25,98 DA:26,98 DA:27,98 DA:28,98 -DA:29,447 -DA:30,44 -DA:32,403 -DA:33,11 -DA:35,392 -DA:36,22 -DA:38,370 -DA:39,5 -DA:41,365 -DA:42,140 -DA:43,140 -DA:45,225 -DA:46,50 -DA:47,50 -DA:49,175 -DA:50,52 -DA:54,52 -DA:55,52 -DA:57,123 -DA:58,27 +DA:29,98 +DA:30,447 +DA:31,44 +DA:32,44 +DA:34,403 +DA:35,11 +DA:37,392 +DA:38,22 +DA:40,370 +DA:41,5 +DA:43,365 +DA:44,140 +DA:45,140 +DA:46,140 +DA:48,225 +DA:49,50 +DA:50,50 +DA:52,175 +DA:53,52 +DA:57,52 +DA:58,52 +DA:59,52 +DA:61,123 DA:62,27 -DA:63,27 -DA:66,96 -DA:67,96 -DA:68,52 +DA:66,27 +DA:67,27 +DA:70,96 +DA:71,96 DA:72,52 -DA:75,44 -DA:76,44 -DA:77,44 +DA:76,52 +DA:79,44 +DA:80,44 DA:81,44 -DA:85,98 -DA:86,52 -DA:87,31 -DA:88,31 -DA:89,31 -DA:90,31 +DA:85,44 +DA:89,98 +DA:90,52 DA:91,31 -DA:92,15 +DA:92,31 +DA:93,31 +DA:94,15 DA:97,16 DA:98,16 -DA:99,16 -DA:100,48 -DA:104,48 -DA:106,16 -DA:113,46 -DA:114,46 -DA:115,46 -DA:116,46 -DA:117,23 -DA:122,23 -DA:123,23 -DA:124,23 -DA:125,23 -DA:126,23 -DA:129,98 -DA:132,1 -LF:68 -LH:68 +DA:99,48 +DA:101,16 +DA:106,46 +DA:107,46 +DA:108,23 +DA:111,23 +DA:112,23 +DA:113,23 +DA:114,23 +DA:117,98 +DA:120,1 +LF:65 +LH:65 BRDA:19,1,0,98 BRDA:19,1,1,96 BRDA:20,2,0,50 BRDA:20,2,1,48 -BRDA:28,3,0,545 -BRDA:28,3,1,493 -BRDA:29,4,0,44 -BRDA:29,4,1,403 -BRDA:32,5,0,11 -BRDA:32,5,1,392 -BRDA:35,6,0,22 -BRDA:35,6,1,370 -BRDA:38,7,0,5 -BRDA:38,7,1,365 -BRDA:41,8,0,140 -BRDA:41,8,1,225 -BRDA:45,9,0,50 -BRDA:45,9,1,175 -BRDA:49,10,0,52 -BRDA:49,10,1,123 -BRDA:57,11,0,27 -BRDA:57,11,1,96 -BRDA:67,12,0,52 -BRDA:67,12,1,44 -BRDA:85,13,0,52 -BRDA:85,13,1,46 -BRDA:86,14,0,31 -BRDA:86,14,1,21 -BRDA:88,15,0,22 -BRDA:88,15,1,9 -BRDA:91,16,0,15 -BRDA:91,16,1,16 -BRDA:91,17,0,31 -BRDA:91,17,1,15 -BRDA:97,18,0,16 -BRDA:97,18,1,0 -BRDA:104,19,0,48 -BRDA:104,19,1,0 -BRDA:113,20,0,46 -BRDA:113,20,1,0 -BRDA:113,21,0,46 -BRDA:113,21,1,46 -BRDA:116,22,0,23 -BRDA:116,22,1,23 -BRDA:116,23,0,46 -BRDA:116,23,1,23 -BRDA:122,24,0,23 -BRDA:122,24,1,0 -BRF:48 -BRH:48 +BRDA:29,3,0,545 +BRDA:29,3,1,493 +BRDA:30,4,0,44 +BRDA:30,4,1,403 +BRDA:34,5,0,11 +BRDA:34,5,1,392 +BRDA:37,6,0,22 +BRDA:37,6,1,370 +BRDA:40,7,0,5 +BRDA:40,7,1,365 +BRDA:43,8,0,140 +BRDA:43,8,1,225 +BRDA:48,9,0,50 +BRDA:48,9,1,175 +BRDA:52,10,0,52 +BRDA:52,10,1,123 +BRDA:61,11,0,27 +BRDA:61,11,1,96 +BRDA:64,12,0,27 +BRDA:64,12,1,11 +BRDA:71,13,0,52 +BRDA:71,13,1,44 +BRDA:74,14,0,52 +BRDA:74,14,1,25 +BRDA:83,15,0,44 +BRDA:83,15,1,24 +BRDA:89,16,0,52 +BRDA:89,16,1,46 +BRDA:90,17,0,31 +BRDA:90,17,1,21 +BRDA:92,18,0,22 +BRDA:92,18,1,9 +BRDA:93,19,0,15 +BRDA:93,19,1,16 +BRDA:106,20,0,48 +BRDA:106,20,1,48 +BRDA:107,21,0,23 +BRDA:107,21,1,23 +BRF:42 +BRH:42 end_of_record diff --git a/esm/index.js b/esm/index.js index 14521e6..8f65f60 100644 --- a/esm/index.js +++ b/esm/index.js @@ -19,6 +19,7 @@ const domdiff = ( const before = beforeNode == null ? null : get(beforeNode, 0); let currentStart = 0, futureStart = 0; let currentEnd = currentNodes.length - 1; + let currentStartNodeZ = null; let currentStartNode = currentNodes[0]; let currentEndNode = currentNodes[currentEnd]; let futureEnd = futureNodes.length - 1; @@ -26,6 +27,7 @@ const domdiff = ( let futureEndNode = futureNodes[futureEnd]; while (currentStart <= currentEnd && futureStart <= futureEnd) { if (currentStartNode == null) { + currentStartNodeZ = null; currentStartNode = currentNodes[++currentStart]; } else if (currentEndNode == null) { @@ -38,6 +40,7 @@ const domdiff = ( futureEndNode = futureNodes[--futureEnd]; } else if (currentStartNode == futureStartNode) { + currentStartNodeZ = null; currentStartNode = currentNodes[++currentStart]; futureStartNode = futureNodes[++futureStart]; } @@ -50,13 +53,14 @@ const domdiff = ( get(currentStartNode, 1), get(currentEndNode, -0).nextSibling ); + currentStartNodeZ = null; currentStartNode = currentNodes[++currentStart]; futureEndNode = futureNodes[--futureEnd]; } else if (currentEndNode == futureStartNode) { parentNode.insertBefore( get(currentEndNode, 1), - get(currentStartNode, 0) + currentStartNodeZ || (currentStartNodeZ = get(currentStartNode, 0)) ); currentEndNode = currentNodes[--currentEnd]; futureStartNode = futureNodes[++futureStart]; @@ -66,7 +70,7 @@ const domdiff = ( if (index < 0) { parentNode.insertBefore( get(futureStartNode, 1), - get(currentStartNode, 0) + currentStartNodeZ || (currentStartNodeZ = get(currentStartNode, 0)) ); futureStartNode = futureNodes[++futureStart]; } @@ -75,7 +79,7 @@ const domdiff = ( currentNodes[index] = null; parentNode.insertBefore( get(el, 1), - get(currentStartNode, 0) + currentStartNodeZ || (currentStartNodeZ = get(currentStartNode, 0)) ); futureStartNode = futureNodes[++futureStart]; } @@ -85,40 +89,24 @@ const domdiff = ( if (futureStart <= futureEnd) { const pin = futureNodes[futureEnd + 1]; const place = pin == null ? before : get(pin, 0); - while (futureNodes[futureStart] == null) futureStart++; - while (futureNodes[futureEnd] == null) futureEnd--; - if (futureStart === futureEnd && futureNodes[futureStart] != null) { + if (futureStart === futureEnd) { parentNode.insertBefore(get(futureNodes[futureStart], 1), place); } - // ignore until I am sure the else could never happen. - // it might be a vDOM thing 'cause it never happens here. - /* istanbul ignore else */ - else if (futureStart < futureEnd) { + else { const fragment = parentNode.ownerDocument.createDocumentFragment(); while (futureStart <= futureEnd) { - const node = futureNodes[futureStart++]; - // ignore until I am sure the else could never happen. - // it might be a vDOM thing 'cause it never happens here. - /* istanbul ignore else */ - if (node != null) fragment.appendChild(get(node, 1)); + fragment.appendChild(get(futureNodes[futureStart++], 1)); } parentNode.insertBefore(fragment, place); } } } - // ignore until I am sure the else could never happen. - // it might be a vDOM thing 'cause it never happens here. - /* istanbul ignore else */ - else if (futureStart > futureEnd && currentStart <= currentEnd) { - while (currentNodes[currentStart] == null) currentStart++; - while (currentNodes[currentEnd] == null) currentEnd--; - if (currentStart === currentEnd && currentNodes[currentStart] != null) { + else { + while (currentStart <= currentEnd && currentNodes[currentStart] == null) currentStart++; + if (currentStart === currentEnd) { parentNode.removeChild(get(currentNodes[currentStart], -1)); } - // ignore until I am sure the else could never happen. - // it might be a vDOM thing 'cause it never happens here. - /* istanbul ignore else */ - else if (currentStart < currentEnd) { + else { const range = parentNode.ownerDocument.createRange(); range.setStartBefore(get(currentNodes[currentStart], -1)); range.setEndAfter(get(currentNodes[currentEnd], -1)); diff --git a/index.js b/index.js index 5717f3e..9bc16af 100644 --- a/index.js +++ b/index.js @@ -24,6 +24,7 @@ beforeNode // optional item/node to use as insertBefore delimiter var currentStart = 0, futureStart = 0; var currentEnd = currentNodes.length - 1; + var currentStartNodeZ = null; var currentStartNode = currentNodes[0]; var currentEndNode = currentNodes[currentEnd]; var futureEnd = futureNodes.length - 1; @@ -31,6 +32,7 @@ beforeNode // optional item/node to use as insertBefore delimiter var futureEndNode = futureNodes[futureEnd]; while (currentStart <= currentEnd && futureStart <= futureEnd) { if (currentStartNode == null) { + currentStartNodeZ = null; currentStartNode = currentNodes[++currentStart]; } else if (currentEndNode == null) { currentEndNode = currentNodes[--currentEnd]; @@ -39,6 +41,7 @@ beforeNode // optional item/node to use as insertBefore delimiter } else if (futureEndNode == null) { futureEndNode = futureNodes[--futureEnd]; } else if (currentStartNode == futureStartNode) { + currentStartNodeZ = null; currentStartNode = currentNodes[++currentStart]; futureStartNode = futureNodes[++futureStart]; } else if (currentEndNode == futureEndNode) { @@ -46,21 +49,22 @@ beforeNode // optional item/node to use as insertBefore delimiter futureEndNode = futureNodes[--futureEnd]; } else if (currentStartNode == futureEndNode) { parentNode.insertBefore(get(currentStartNode, 1), get(currentEndNode, -0).nextSibling); + currentStartNodeZ = null; currentStartNode = currentNodes[++currentStart]; futureEndNode = futureNodes[--futureEnd]; } else if (currentEndNode == futureStartNode) { - parentNode.insertBefore(get(currentEndNode, 1), get(currentStartNode, 0)); + parentNode.insertBefore(get(currentEndNode, 1), currentStartNodeZ || (currentStartNodeZ = get(currentStartNode, 0))); currentEndNode = currentNodes[--currentEnd]; futureStartNode = futureNodes[++futureStart]; } else { var index = currentNodes.indexOf(futureStartNode); if (index < 0) { - parentNode.insertBefore(get(futureStartNode, 1), get(currentStartNode, 0)); + parentNode.insertBefore(get(futureStartNode, 1), currentStartNodeZ || (currentStartNodeZ = get(currentStartNode, 0))); futureStartNode = futureNodes[++futureStart]; } else { var el = currentNodes[index]; currentNodes[index] = null; - parentNode.insertBefore(get(el, 1), get(currentStartNode, 0)); + parentNode.insertBefore(get(el, 1), currentStartNodeZ || (currentStartNodeZ = get(currentStartNode, 0))); futureStartNode = futureNodes[++futureStart]; } } @@ -69,50 +73,28 @@ beforeNode // optional item/node to use as insertBefore delimiter if (futureStart <= futureEnd) { var pin = futureNodes[futureEnd + 1]; var place = pin == null ? before : get(pin, 0); - while (futureNodes[futureStart] == null) { - futureStart++; - }while (futureNodes[futureEnd] == null) { - futureEnd--; - }if (futureStart === futureEnd && futureNodes[futureStart] != null) { + if (futureStart === futureEnd) { parentNode.insertBefore(get(futureNodes[futureStart], 1), place); - } - // ignore until I am sure the else could never happen. - // it might be a vDOM thing 'cause it never happens here. - /* istanbul ignore else */ - else if (futureStart < futureEnd) { - var fragment = parentNode.ownerDocument.createDocumentFragment(); - while (futureStart <= futureEnd) { - var node = futureNodes[futureStart++]; - // ignore until I am sure the else could never happen. - // it might be a vDOM thing 'cause it never happens here. - /* istanbul ignore else */ - if (node != null) fragment.appendChild(get(node, 1)); - } - parentNode.insertBefore(fragment, place); + } else { + var fragment = parentNode.ownerDocument.createDocumentFragment(); + while (futureStart <= futureEnd) { + fragment.appendChild(get(futureNodes[futureStart++], 1)); } - } - } - // ignore until I am sure the else could never happen. - // it might be a vDOM thing 'cause it never happens here. - /* istanbul ignore else */ - else if (futureStart > futureEnd && currentStart <= currentEnd) { - while (currentNodes[currentStart] == null) { - currentStart++; - }while (currentNodes[currentEnd] == null) { - currentEnd--; - }if (currentStart === currentEnd && currentNodes[currentStart] != null) { - parentNode.removeChild(get(currentNodes[currentStart], -1)); + parentNode.insertBefore(fragment, place); } - // ignore until I am sure the else could never happen. - // it might be a vDOM thing 'cause it never happens here. - /* istanbul ignore else */ - else if (currentStart < currentEnd) { - var range = parentNode.ownerDocument.createRange(); - range.setStartBefore(get(currentNodes[currentStart], -1)); - range.setEndAfter(get(currentNodes[currentEnd], -1)); - range.deleteContents(); - } } + } else { + while (currentStart <= currentEnd && currentNodes[currentStart] == null) { + currentStart++; + }if (currentStart === currentEnd) { + parentNode.removeChild(get(currentNodes[currentStart], -1)); + } else { + var range = parentNode.ownerDocument.createRange(); + range.setStartBefore(get(currentNodes[currentStart], -1)); + range.setEndAfter(get(currentNodes[currentEnd], -1)); + range.deleteContents(); + } + } return futureNodes; }; diff --git a/min.js b/min.js index d71a2da..a610fb5 100644 --- a/min.js +++ b/min.js @@ -1,2 +1,2 @@ var domdiff=function(){"use strict";/*! (c) 2017 Andrea Giammarchi (ISC) */ -var e=function(e){return e};return function(l,n,r,f,i){for(var t=f||e,u=null==i?null:t(i,0),o=0,s=0,a=n.length-1,v=n[0],c=n[a],d=r.length-1,B=r[0],m=r[d];o<=a&&s<=d;)if(null==v)v=n[++o];else if(null==c)c=n[--a];else if(null==B)B=r[++s];else if(null==m)m=r[--d];else if(v==B)v=n[++o],B=r[++s];else if(c==m)c=n[--a],m=r[--d];else if(v==m)l.insertBefore(t(v,1),t(c,-0).nextSibling),v=n[++o],m=r[--d];else if(c==B)l.insertBefore(t(c,1),t(v,0)),c=n[--a],B=r[++s];else{var g=n.indexOf(B);if(g<0)l.insertBefore(t(B,1),t(v,0)),B=r[++s];else{var h=n[g];n[g]=null,l.insertBefore(t(h,1),t(v,0)),B=r[++s]}}if(o>a){if(s<=d){for(var C=r[d+1],D=null==C?u:t(C,0);null==r[s];)s++;for(;null==r[d];)d--;if(s===d&&null!=r[s])l.insertBefore(t(r[s],1),D);else if(sd&&o<=a){for(;null==n[o];)o++;for(;null==n[a];)a--;if(o===a&&null!=n[o])l.removeChild(t(n[o],-1));else if(oa){if(o<=B){var D=r[B+1],p=null==D?s:i(D,0);if(o===B)l.insertBefore(i(r[o],1),p);else{for(var w=l.ownerDocument.createDocumentFragment();o<=B;)w.appendChild(i(r[o++],1));l.insertBefore(w,p)}}}else{for(;u<=a&&null==n[u];)u++;if(u===a)l.removeChild(i(n[u],-1));else{var x=l.ownerDocument.createRange();x.setStartBefore(i(n[u],-1)),x.setEndAfter(i(n[a],-1)),x.deleteContents()}}return r}}(); \ No newline at end of file diff --git a/test/diff.html b/test/diff.html new file mode 100644 index 0000000..fe8ac07 --- /dev/null +++ b/test/diff.html @@ -0,0 +1,104 @@ + + + + DOM Diff - Bob & Lucy + + +
+ + + \ No newline at end of file From 47a449aeb4b2983c0f0ba7c630ac9101405fa472 Mon Sep 17 00:00:00 2001 From: Andrea Giammarchi Date: Wed, 6 Dec 2017 13:25:08 -0200 Subject: [PATCH 13/71] publishing not-null-guarded version --- cjs/index.js | 10 +- coverage/coverage.json | 2 +- coverage/lcov-report/cjs/index.html | 14 +- coverage/lcov-report/cjs/index.js.html | 30 ++--- coverage/lcov-report/index.html | 14 +- coverage/lcov.info | 172 ++++++++++++------------- esm/index.js | 10 +- index.js | 10 +- min.js | 2 +- 9 files changed, 115 insertions(+), 149 deletions(-) diff --git a/cjs/index.js b/cjs/index.js index b0d8319..256c91c 100644 --- a/cjs/index.js +++ b/cjs/index.js @@ -20,7 +20,6 @@ const domdiff = ( const before = beforeNode == null ? null : get(beforeNode, 0); let currentStart = 0, futureStart = 0; let currentEnd = currentNodes.length - 1; - let currentStartNodeZ = null; let currentStartNode = currentNodes[0]; let currentEndNode = currentNodes[currentEnd]; let futureEnd = futureNodes.length - 1; @@ -28,7 +27,6 @@ const domdiff = ( let futureEndNode = futureNodes[futureEnd]; while (currentStart <= currentEnd && futureStart <= futureEnd) { if (currentStartNode == null) { - currentStartNodeZ = null; currentStartNode = currentNodes[++currentStart]; } else if (currentEndNode == null) { @@ -41,7 +39,6 @@ const domdiff = ( futureEndNode = futureNodes[--futureEnd]; } else if (currentStartNode == futureStartNode) { - currentStartNodeZ = null; currentStartNode = currentNodes[++currentStart]; futureStartNode = futureNodes[++futureStart]; } @@ -54,14 +51,13 @@ const domdiff = ( get(currentStartNode, 1), get(currentEndNode, -0).nextSibling ); - currentStartNodeZ = null; currentStartNode = currentNodes[++currentStart]; futureEndNode = futureNodes[--futureEnd]; } else if (currentEndNode == futureStartNode) { parentNode.insertBefore( get(currentEndNode, 1), - currentStartNodeZ || (currentStartNodeZ = get(currentStartNode, 0)) + get(currentStartNode, 0) ); currentEndNode = currentNodes[--currentEnd]; futureStartNode = futureNodes[++futureStart]; @@ -71,7 +67,7 @@ const domdiff = ( if (index < 0) { parentNode.insertBefore( get(futureStartNode, 1), - currentStartNodeZ || (currentStartNodeZ = get(currentStartNode, 0)) + get(currentStartNode, 0) ); futureStartNode = futureNodes[++futureStart]; } @@ -80,7 +76,7 @@ const domdiff = ( currentNodes[index] = null; parentNode.insertBefore( get(el, 1), - currentStartNodeZ || (currentStartNodeZ = get(currentStartNode, 0)) + get(currentStartNode, 0) ); futureStartNode = futureNodes[++futureStart]; } diff --git a/coverage/coverage.json b/coverage/coverage.json index c83359c..b339fbe 100644 --- a/coverage/coverage.json +++ b/coverage/coverage.json @@ -1 +1 @@ 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100% - 67/67 + 63/63 100% - 42/42 + 36/36 100% 0/0 100% - 65/65 + 61/61 @@ -77,7 +77,7 @@

Code coverage - generated by istanbul at Wed Dec 06 2017 13:08:42 GMT-0200 (-02) + generated by istanbul at Wed Dec 06 2017 13:24:39 GMT-0200 (-02)
diff --git a/coverage/lcov.info b/coverage/lcov.info index 1ef403a..5611a5e 100644 --- a/coverage/lcov.info +++ b/coverage/lcov.info @@ -2,7 +2,7 @@ TN: SF:/home/webreflection/code/domdiff/cjs/index.js FNF:0 FNH:0 -DA:10,467 +DA:10,528 DA:12,1 DA:19,98 DA:20,98 @@ -14,103 +14,93 @@ DA:25,98 DA:26,98 DA:27,98 DA:28,98 -DA:29,98 -DA:30,447 -DA:31,44 -DA:32,44 -DA:34,403 -DA:35,11 -DA:37,392 -DA:38,22 -DA:40,370 -DA:41,5 -DA:43,365 -DA:44,140 -DA:45,140 -DA:46,140 -DA:48,225 -DA:49,50 -DA:50,50 -DA:52,175 -DA:53,52 -DA:57,52 -DA:58,52 -DA:59,52 -DA:61,123 +DA:29,447 +DA:30,44 +DA:32,403 +DA:33,11 +DA:35,392 +DA:36,22 +DA:38,370 +DA:39,5 +DA:41,365 +DA:42,140 +DA:43,140 +DA:45,225 +DA:46,50 +DA:47,50 +DA:49,175 +DA:50,52 +DA:54,52 +DA:55,52 +DA:57,123 +DA:58,27 DA:62,27 -DA:66,27 -DA:67,27 -DA:70,96 -DA:71,96 +DA:63,27 +DA:66,96 +DA:67,96 +DA:68,52 DA:72,52 -DA:76,52 -DA:79,44 -DA:80,44 +DA:75,44 +DA:76,44 +DA:77,44 DA:81,44 -DA:85,44 -DA:89,98 -DA:90,52 -DA:91,31 -DA:92,31 -DA:93,31 -DA:94,15 +DA:85,98 +DA:86,52 +DA:87,31 +DA:88,31 +DA:89,31 +DA:90,15 +DA:93,16 +DA:94,16 +DA:95,48 DA:97,16 -DA:98,16 -DA:99,48 -DA:101,16 -DA:106,46 -DA:107,46 +DA:102,46 +DA:103,46 +DA:104,23 +DA:107,23 DA:108,23 -DA:111,23 -DA:112,23 -DA:113,23 -DA:114,23 -DA:117,98 -DA:120,1 -LF:65 -LH:65 +DA:109,23 +DA:110,23 +DA:113,98 +DA:116,1 +LF:61 +LH:61 BRDA:19,1,0,98 BRDA:19,1,1,96 BRDA:20,2,0,50 BRDA:20,2,1,48 -BRDA:29,3,0,545 -BRDA:29,3,1,493 -BRDA:30,4,0,44 -BRDA:30,4,1,403 -BRDA:34,5,0,11 -BRDA:34,5,1,392 -BRDA:37,6,0,22 -BRDA:37,6,1,370 -BRDA:40,7,0,5 -BRDA:40,7,1,365 -BRDA:43,8,0,140 -BRDA:43,8,1,225 -BRDA:48,9,0,50 -BRDA:48,9,1,175 -BRDA:52,10,0,52 -BRDA:52,10,1,123 -BRDA:61,11,0,27 -BRDA:61,11,1,96 -BRDA:64,12,0,27 -BRDA:64,12,1,11 -BRDA:71,13,0,52 -BRDA:71,13,1,44 -BRDA:74,14,0,52 -BRDA:74,14,1,25 -BRDA:83,15,0,44 -BRDA:83,15,1,24 -BRDA:89,16,0,52 -BRDA:89,16,1,46 -BRDA:90,17,0,31 -BRDA:90,17,1,21 -BRDA:92,18,0,22 -BRDA:92,18,1,9 -BRDA:93,19,0,15 -BRDA:93,19,1,16 -BRDA:106,20,0,48 -BRDA:106,20,1,48 -BRDA:107,21,0,23 -BRDA:107,21,1,23 -BRF:42 -BRH:42 +BRDA:28,3,0,545 +BRDA:28,3,1,493 +BRDA:29,4,0,44 +BRDA:29,4,1,403 +BRDA:32,5,0,11 +BRDA:32,5,1,392 +BRDA:35,6,0,22 +BRDA:35,6,1,370 +BRDA:38,7,0,5 +BRDA:38,7,1,365 +BRDA:41,8,0,140 +BRDA:41,8,1,225 +BRDA:45,9,0,50 +BRDA:45,9,1,175 +BRDA:49,10,0,52 +BRDA:49,10,1,123 +BRDA:57,11,0,27 +BRDA:57,11,1,96 +BRDA:67,12,0,52 +BRDA:67,12,1,44 +BRDA:85,13,0,52 +BRDA:85,13,1,46 +BRDA:86,14,0,31 +BRDA:86,14,1,21 +BRDA:88,15,0,22 +BRDA:88,15,1,9 +BRDA:89,16,0,15 +BRDA:89,16,1,16 +BRDA:102,17,0,48 +BRDA:102,17,1,48 +BRDA:103,18,0,23 +BRDA:103,18,1,23 +BRF:36 +BRH:36 end_of_record diff --git a/esm/index.js b/esm/index.js index 8f65f60..9944147 100644 --- a/esm/index.js +++ b/esm/index.js @@ -19,7 +19,6 @@ const domdiff = ( const before = beforeNode == null ? null : get(beforeNode, 0); let currentStart = 0, futureStart = 0; let currentEnd = currentNodes.length - 1; - let currentStartNodeZ = null; let currentStartNode = currentNodes[0]; let currentEndNode = currentNodes[currentEnd]; let futureEnd = futureNodes.length - 1; @@ -27,7 +26,6 @@ const domdiff = ( let futureEndNode = futureNodes[futureEnd]; while (currentStart <= currentEnd && futureStart <= futureEnd) { if (currentStartNode == null) { - currentStartNodeZ = null; currentStartNode = currentNodes[++currentStart]; } else if (currentEndNode == null) { @@ -40,7 +38,6 @@ const domdiff = ( futureEndNode = futureNodes[--futureEnd]; } else if (currentStartNode == futureStartNode) { - currentStartNodeZ = null; currentStartNode = currentNodes[++currentStart]; futureStartNode = futureNodes[++futureStart]; } @@ -53,14 +50,13 @@ const domdiff = ( get(currentStartNode, 1), get(currentEndNode, -0).nextSibling ); - currentStartNodeZ = null; currentStartNode = currentNodes[++currentStart]; futureEndNode = futureNodes[--futureEnd]; } else if (currentEndNode == futureStartNode) { parentNode.insertBefore( get(currentEndNode, 1), - currentStartNodeZ || (currentStartNodeZ = get(currentStartNode, 0)) + get(currentStartNode, 0) ); currentEndNode = currentNodes[--currentEnd]; futureStartNode = futureNodes[++futureStart]; @@ -70,7 +66,7 @@ const domdiff = ( if (index < 0) { parentNode.insertBefore( get(futureStartNode, 1), - currentStartNodeZ || (currentStartNodeZ = get(currentStartNode, 0)) + get(currentStartNode, 0) ); futureStartNode = futureNodes[++futureStart]; } @@ -79,7 +75,7 @@ const domdiff = ( currentNodes[index] = null; parentNode.insertBefore( get(el, 1), - currentStartNodeZ || (currentStartNodeZ = get(currentStartNode, 0)) + get(currentStartNode, 0) ); futureStartNode = futureNodes[++futureStart]; } diff --git a/index.js b/index.js index 9bc16af..bff0b27 100644 --- a/index.js +++ b/index.js @@ -24,7 +24,6 @@ beforeNode // optional item/node to use as insertBefore delimiter var currentStart = 0, futureStart = 0; var currentEnd = currentNodes.length - 1; - var currentStartNodeZ = null; var currentStartNode = currentNodes[0]; var currentEndNode = currentNodes[currentEnd]; var futureEnd = futureNodes.length - 1; @@ -32,7 +31,6 @@ beforeNode // optional item/node to use as insertBefore delimiter var futureEndNode = futureNodes[futureEnd]; while (currentStart <= currentEnd && futureStart <= futureEnd) { if (currentStartNode == null) { - currentStartNodeZ = null; currentStartNode = currentNodes[++currentStart]; } else if (currentEndNode == null) { currentEndNode = currentNodes[--currentEnd]; @@ -41,7 +39,6 @@ beforeNode // optional item/node to use as insertBefore delimiter } else if (futureEndNode == null) { futureEndNode = futureNodes[--futureEnd]; } else if (currentStartNode == futureStartNode) { - currentStartNodeZ = null; currentStartNode = currentNodes[++currentStart]; futureStartNode = futureNodes[++futureStart]; } else if (currentEndNode == futureEndNode) { @@ -49,22 +46,21 @@ beforeNode // optional item/node to use as insertBefore delimiter futureEndNode = futureNodes[--futureEnd]; } else if (currentStartNode == futureEndNode) { parentNode.insertBefore(get(currentStartNode, 1), get(currentEndNode, -0).nextSibling); - currentStartNodeZ = null; currentStartNode = currentNodes[++currentStart]; futureEndNode = futureNodes[--futureEnd]; } else if (currentEndNode == futureStartNode) { - parentNode.insertBefore(get(currentEndNode, 1), currentStartNodeZ || (currentStartNodeZ = get(currentStartNode, 0))); + parentNode.insertBefore(get(currentEndNode, 1), get(currentStartNode, 0)); currentEndNode = currentNodes[--currentEnd]; futureStartNode = futureNodes[++futureStart]; } else { var index = currentNodes.indexOf(futureStartNode); if (index < 0) { - parentNode.insertBefore(get(futureStartNode, 1), currentStartNodeZ || (currentStartNodeZ = get(currentStartNode, 0))); + parentNode.insertBefore(get(futureStartNode, 1), get(currentStartNode, 0)); futureStartNode = futureNodes[++futureStart]; } else { var el = currentNodes[index]; currentNodes[index] = null; - parentNode.insertBefore(get(el, 1), currentStartNodeZ || (currentStartNodeZ = get(currentStartNode, 0))); + parentNode.insertBefore(get(el, 1), get(currentStartNode, 0)); futureStartNode = futureNodes[++futureStart]; } } diff --git a/min.js b/min.js index a610fb5..26d4e15 100644 --- a/min.js +++ b/min.js @@ -1,2 +1,2 @@ var domdiff=function(){"use strict";/*! 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15/71] added more tests at the end --- coverage/coverage.json | 2 +- coverage/lcov-report/cjs/index.html | 2 +- coverage/lcov-report/cjs/index.js.html | 52 ++++++++--------- coverage/lcov-report/index.html | 2 +- coverage/lcov.info | 78 +++++++++++++------------- test/test.js | 28 ++++++++- 6 files changed, 95 insertions(+), 69 deletions(-) diff --git a/coverage/coverage.json b/coverage/coverage.json index b339fbe..9a3b981 100644 --- a/coverage/coverage.json +++ b/coverage/coverage.json @@ -1 +1 @@ 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Code coverage - generated by istanbul at Wed Dec 06 2017 13:24:39 GMT-0200 (-02) + generated by istanbul at Wed Dec 06 2017 18:27:06 GMT-0200 (-02)
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BRDA:20,2,1,48 -BRDA:28,3,0,545 -BRDA:28,3,1,493 +BRDA:28,3,0,548 +BRDA:28,3,1,495 BRDA:29,4,0,44 BRDA:29,4,1,403 BRDA:32,5,0,11 @@ -89,18 +89,18 @@ BRDA:57,11,0,27 BRDA:57,11,1,96 BRDA:67,12,0,52 BRDA:67,12,1,44 -BRDA:85,13,0,52 -BRDA:85,13,1,46 -BRDA:86,14,0,31 +BRDA:85,13,0,53 +BRDA:85,13,1,48 +BRDA:86,14,0,32 BRDA:86,14,1,21 -BRDA:88,15,0,22 +BRDA:88,15,0,23 BRDA:88,15,1,9 -BRDA:89,16,0,15 +BRDA:89,16,0,16 BRDA:89,16,1,16 -BRDA:102,17,0,48 -BRDA:102,17,1,48 -BRDA:103,18,0,23 -BRDA:103,18,1,23 +BRDA:102,17,0,50 +BRDA:102,17,1,50 +BRDA:103,18,0,24 +BRDA:103,18,1,24 BRF:36 BRH:36 end_of_record diff --git a/test/test.js b/test/test.js index 29b2646..4f8d3fa 100644 --- a/test/test.js +++ b/test/test.js @@ -6,6 +6,7 @@ var clean = function () { }; var compare = function (state, value) { assert( + state.length === value.length && value.split('').every(function (v, i) { return state[i] === nodes[v]; }), @@ -121,7 +122,10 @@ newState = domdiff( compare(newState, 'ghi'); 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diff --git a/coverage/lcov.info b/coverage/lcov.info index fbd23a2..c6d5f3e 100644 --- a/coverage/lcov.info +++ b/coverage/lcov.info @@ -2,49 +2,49 @@ TN: SF:/home/webreflection/code/domdiff/cjs/index.js FNF:0 FNH:0 -DA:10,532 +DA:10,559 DA:12,1 -DA:19,101 -DA:20,101 -DA:21,101 -DA:22,101 -DA:23,101 -DA:24,101 -DA:25,101 -DA:26,101 -DA:27,101 -DA:28,101 -DA:29,447 +DA:19,104 +DA:20,104 +DA:21,104 +DA:22,104 +DA:23,104 +DA:24,104 +DA:25,104 +DA:26,104 +DA:27,104 +DA:28,104 +DA:29,462 DA:30,44 -DA:32,403 -DA:33,11 -DA:35,392 +DA:32,418 +DA:33,12 +DA:35,406 DA:36,22 -DA:38,370 +DA:38,384 DA:39,5 -DA:41,365 -DA:42,140 -DA:43,140 -DA:45,225 -DA:46,50 -DA:47,50 -DA:49,175 -DA:50,52 -DA:54,52 -DA:55,52 -DA:57,123 -DA:58,27 -DA:62,27 -DA:63,27 -DA:66,96 -DA:67,96 -DA:68,52 -DA:72,52 -DA:75,44 -DA:76,44 -DA:77,44 -DA:81,44 -DA:85,101 +DA:41,379 +DA:42,142 +DA:43,142 +DA:45,237 +DA:46,52 +DA:47,52 +DA:49,185 +DA:50,55 +DA:54,55 +DA:55,55 +DA:57,130 +DA:58,28 +DA:62,28 +DA:63,28 +DA:66,102 +DA:67,102 +DA:68,57 +DA:72,57 +DA:75,45 +DA:76,45 +DA:77,45 +DA:81,45 +DA:85,104 DA:86,53 DA:87,32 DA:88,32 @@ -54,53 +54,53 @@ DA:93,16 DA:94,16 DA:95,48 DA:97,16 -DA:102,48 -DA:103,48 -DA:104,24 -DA:107,24 -DA:108,24 -DA:109,24 -DA:110,24 -DA:113,101 +DA:102,51 +DA:103,51 +DA:104,26 +DA:107,25 +DA:108,25 +DA:109,25 +DA:110,25 +DA:113,104 DA:116,1 LF:61 LH:61 -BRDA:19,1,0,101 -BRDA:19,1,1,99 +BRDA:19,1,0,104 +BRDA:19,1,1,102 BRDA:20,2,0,53 -BRDA:20,2,1,48 -BRDA:28,3,0,548 -BRDA:28,3,1,495 +BRDA:20,2,1,51 +BRDA:28,3,0,566 +BRDA:28,3,1,513 BRDA:29,4,0,44 -BRDA:29,4,1,403 -BRDA:32,5,0,11 -BRDA:32,5,1,392 +BRDA:29,4,1,418 +BRDA:32,5,0,12 +BRDA:32,5,1,406 BRDA:35,6,0,22 -BRDA:35,6,1,370 +BRDA:35,6,1,384 BRDA:38,7,0,5 -BRDA:38,7,1,365 -BRDA:41,8,0,140 -BRDA:41,8,1,225 -BRDA:45,9,0,50 -BRDA:45,9,1,175 -BRDA:49,10,0,52 -BRDA:49,10,1,123 -BRDA:57,11,0,27 -BRDA:57,11,1,96 -BRDA:67,12,0,52 -BRDA:67,12,1,44 +BRDA:38,7,1,379 +BRDA:41,8,0,142 +BRDA:41,8,1,237 +BRDA:45,9,0,52 +BRDA:45,9,1,185 +BRDA:49,10,0,55 +BRDA:49,10,1,130 +BRDA:57,11,0,28 +BRDA:57,11,1,102 +BRDA:67,12,0,57 +BRDA:67,12,1,45 BRDA:85,13,0,53 -BRDA:85,13,1,48 +BRDA:85,13,1,51 BRDA:86,14,0,32 BRDA:86,14,1,21 BRDA:88,15,0,23 BRDA:88,15,1,9 BRDA:89,16,0,16 BRDA:89,16,1,16 -BRDA:102,17,0,50 -BRDA:102,17,1,50 -BRDA:103,18,0,24 -BRDA:103,18,1,24 +BRDA:102,17,0,2 +BRDA:102,17,1,49 +BRDA:103,18,0,26 +BRDA:103,18,1,25 BRF:36 BRH:36 end_of_record diff --git a/esm/index.js b/esm/index.js index 9944147..6782a4d 100644 --- a/esm/index.js +++ b/esm/index.js @@ -98,7 +98,7 @@ const domdiff = ( } } else { - while (currentStart <= currentEnd && currentNodes[currentStart] == null) currentStart++; + if (currentNodes[currentStart] == null) currentStart++; if (currentStart === currentEnd) { parentNode.removeChild(get(currentNodes[currentStart], -1)); } diff --git a/index.js b/index.js index bff0b27..40ba0e5 100644 --- a/index.js +++ b/index.js @@ -80,9 +80,8 @@ beforeNode // optional item/node to use as insertBefore delimiter } } } else { - while (currentStart <= currentEnd && currentNodes[currentStart] == null) { - currentStart++; - }if (currentStart === currentEnd) { + if (currentNodes[currentStart] == null) currentStart++; + if (currentStart === currentEnd) { parentNode.removeChild(get(currentNodes[currentStart], -1)); } else { var range = parentNode.ownerDocument.createRange(); diff --git a/min.js b/min.js index 26d4e15..3e465a2 100644 --- a/min.js +++ b/min.js @@ -1,2 +1,2 @@ var domdiff=function(){"use strict";/*! (c) 2017 Andrea Giammarchi (ISC) */ -var e=function(e){return e};return function(n,r,l,t,f){for(var i=t||e,s=null==f?null:i(f,0),o=0,u=0,a=r.length-1,c=r[0],v=r[a],d=l.length-1,B=l[0],m=l[d];o<=a&&u<=d;)if(null==c)c=r[++o];else if(null==v)v=r[--a];else if(null==B)B=l[++u];else if(null==m)m=l[--d];else if(c==B)c=r[++o],B=l[++u];else if(v==m)v=r[--a],m=l[--d];else if(c==m)n.insertBefore(i(c,1),i(v,-0).nextSibling),c=r[++o],m=l[--d];else if(v==B)n.insertBefore(i(v,1),i(c,0)),v=r[--a],B=l[++u];else{var g=r.indexOf(B);if(g<0)n.insertBefore(i(B,1),i(c,0)),B=l[++u];else{var h=r[g];r[g]=null,n.insertBefore(i(h,1),i(c,0)),B=l[++u]}}if(o>a){if(u<=d){var C=l[d+1],D=null==C?s:i(C,0);if(u===d)n.insertBefore(i(l[u],1),D);else{for(var p=n.ownerDocument.createDocumentFragment();u<=d;)p.appendChild(i(l[u++],1));n.insertBefore(p,D)}}}else{for(;o<=a&&null==r[o];)o++;if(o===a)n.removeChild(i(r[o],-1));else{var w=n.ownerDocument.createRange();w.setStartBefore(i(r[o],-1)),w.setEndAfter(i(r[a],-1)),w.deleteContents()}}return l}}(); \ No newline at end of file +var e=function(e){return e};return function(n,r,l,t,f){for(var i=t||e,s=null==f?null:i(f,0),o=0,u=0,a=r.length-1,c=r[0],v=r[a],d=l.length-1,B=l[0],m=l[d];o<=a&&u<=d;)if(null==c)c=r[++o];else if(null==v)v=r[--a];else if(null==B)B=l[++u];else if(null==m)m=l[--d];else if(c==B)c=r[++o],B=l[++u];else if(v==m)v=r[--a],m=l[--d];else if(c==m)n.insertBefore(i(c,1),i(v,-0).nextSibling),c=r[++o],m=l[--d];else if(v==B)n.insertBefore(i(v,1),i(c,0)),v=r[--a],B=l[++u];else{var g=r.indexOf(B);if(g<0)n.insertBefore(i(B,1),i(c,0)),B=l[++u];else{var h=r[g];r[g]=null,n.insertBefore(i(h,1),i(c,0)),B=l[++u]}}if(o>a){if(u<=d){var C=l[d+1],D=null==C?s:i(C,0);if(u===d)n.insertBefore(i(l[u],1),D);else{for(var p=n.ownerDocument.createDocumentFragment();u<=d;)p.appendChild(i(l[u++],1));n.insertBefore(p,D)}}}else if(null==r[o]&&o++,o===a)n.removeChild(i(r[o],-1));else{var w=n.ownerDocument.createRange();w.setStartBefore(i(r[o],-1)),w.setEndAfter(i(r[a],-1)),w.deleteContents()}return l}}(); \ No newline at end of file diff --git a/test/test.js b/test/test.js index 4f8d3fa..f7c4fa4 100644 --- a/test/test.js +++ b/test/test.js @@ -402,6 +402,33 @@ newState = domdiff( ); compare(newState, 'abc'); +newState = domdiff( + document.body, + newState, + [nodes.b, nodes.c, nodes.a, nodes.d], + null, + nodes.k +); +compare(newState, 'bcad'); + +newState = domdiff( + document.body, + newState, + [nodes.c, nodes.b, nodes.d], + null, + nodes.k +); +compare(newState, 'cbd'); + +newState = domdiff( + document.body, + newState, + [nodes.a, nodes.b, nodes.c], + null, + nodes.k +); +compare(newState, 'abc'); + newState = domdiff( document.body, newState, @@ -904,23 +931,23 @@ compare(newState, 'fedcba'); newState = domdiff( document.body, newState, - [] + [nodes.a] ); -compare(newState, ''); +compare(newState, 'a'); newState = domdiff( document.body, newState, - [nodes.a] + [nodes.b, nodes.c, nodes.d] ); -compare(newState, 'a'); +compare(newState, 'bcd'); newState = domdiff( document.body, newState, - [] + [nodes.a] ); -compare(newState, ''); +compare(newState, 'a'); tressa.end(); From e6b7ed1ab9cdbfc2e8f71b201f87592d0c564f8d Mon Sep 17 00:00:00 2001 From: Andrea Giammarchi Date: Thu, 7 Dec 2017 06:40:36 -0200 Subject: [PATCH 17/71] 0.3.2 --- package.json | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/package.json b/package.json index 8572749..132f496 100644 --- a/package.json +++ b/package.json @@ -1,6 +1,6 @@ { "name": "domdiff", - "version": "0.3.1", + "version": "0.3.2", "description": "A fast and simple way to diff childNodes", "browser": "min.js", "main": "cjs/index.js", From 92dfd1b8153ad3564d34c644a9831a6db177cf69 Mon Sep 17 00:00:00 2001 From: Andrea Giammarchi Date: Mon, 11 Dec 2017 17:09:59 -0200 Subject: [PATCH 18/71] entering last if/else only in certain conditions --- cjs/index.js | 24 ++++++++-------- coverage/coverage.json | 2 +- coverage/lcov-report/cjs/index.html | 6 ++-- coverage/lcov-report/cjs/index.js.html | 32 +++++++++++----------- coverage/lcov-report/index.html | 6 ++-- coverage/lcov.info | 38 ++++++++++++++------------ esm/index.js | 24 ++++++++-------- index.js | 22 +++++++-------- min.js | 2 +- 9 files changed, 79 insertions(+), 77 deletions(-) diff --git a/cjs/index.js b/cjs/index.js index c6264ce..d67feb5 100644 --- a/cjs/index.js +++ b/cjs/index.js @@ -82,8 +82,8 @@ const domdiff = ( } } } - if (currentStart > currentEnd) { - if (futureStart <= futureEnd) { + if (currentStart <= currentEnd || futureStart <= futureEnd) { + if (currentStart > currentEnd) { const pin = futureNodes[futureEnd + 1]; const place = pin == null ? before : get(pin, 0); if (futureStart === futureEnd) { @@ -97,17 +97,17 @@ const domdiff = ( parentNode.insertBefore(fragment, place); } } - } - else { - if (currentNodes[currentStart] == null) currentStart++; - if (currentStart === currentEnd) { - parentNode.removeChild(get(currentNodes[currentStart], -1)); - } else { - const range = parentNode.ownerDocument.createRange(); - range.setStartBefore(get(currentNodes[currentStart], -1)); - range.setEndAfter(get(currentNodes[currentEnd], -1)); - range.deleteContents(); + if (currentNodes[currentStart] == null) currentStart++; + if (currentStart === currentEnd) { + parentNode.removeChild(get(currentNodes[currentStart], -1)); + } + else { + const range = parentNode.ownerDocument.createRange(); + range.setStartBefore(get(currentNodes[currentStart], -1)); + range.setEndAfter(get(currentNodes[currentEnd], -1)); + range.deleteContents(); + } } } return futureNodes; diff --git a/coverage/coverage.json b/coverage/coverage.json index 265a32f..efce9cf 100644 --- a/coverage/coverage.json +++ b/coverage/coverage.json @@ -1 +1 @@ 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} } } - if (currentStart > currentEnd) { - if (futureStart <= futureEnd) { + if (currentStart <= currentEnd || futureStart <= futureEnd) { + if (currentStart > currentEnd) { const pin = futureNodes[futureEnd + 1]; const place = pin == null ? before : get(pin, 0); if (futureStart === futureEnd) { @@ -374,17 +374,17 @@

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Code coverage - generated by istanbul at Mon Dec 11 2017 17:24:11 GMT-0200 (-02) + generated by istanbul at Fri Jan 19 2018 21:09:53 GMT+0100 (CET)
diff --git a/coverage/lcov-report/cjs/index.js.html b/coverage/lcov-report/cjs/index.js.html index f6821c3..441dc92 100644 --- a/coverage/lcov-report/cjs/index.js.html +++ b/coverage/lcov-report/cjs/index.js.html @@ -22,12 +22,12 @@

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} } else { - // TODO: this case never happens but it was previously essential. - // anything to further investigate? - // if (currentNodes[currentStart] == null) currentStart++; + if (currentNodes[currentStart] == null) currentStart++; if (currentStart === currentEnd) { parentNode.removeChild(get(currentNodes[currentStart], -1)); } @@ -403,7 +397,7 @@

Code coverage - generated by istanbul at Mon Dec 11 2017 17:24:11 GMT-0200 (-02) + generated by istanbul at Fri Jan 19 2018 21:09:53 GMT+0100 (CET)
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diff --git a/coverage/lcov.info b/coverage/lcov.info index f59b516..436880a 100644 --- a/coverage/lcov.info +++ b/coverage/lcov.info @@ -2,7 +2,7 @@ TN: SF:/home/webreflection/code/domdiff/cjs/index.js FNF:0 FNH:0 -DA:10,561 +DA:10,559 DA:12,1 DA:19,104 DA:20,104 @@ -54,16 +54,17 @@ DA:93,16 DA:94,16 DA:95,48 DA:97,16 -DA:104,51 -DA:105,24 -DA:108,27 -DA:109,27 -DA:110,27 -DA:111,27 -DA:115,104 -DA:118,1 -LF:60 -LH:60 +DA:101,51 +DA:102,51 +DA:103,26 +DA:106,25 +DA:107,25 +DA:108,25 +DA:109,25 +DA:113,104 +DA:116,1 +LF:61 +LH:61 BRDA:19,1,0,104 BRDA:19,1,1,102 BRDA:20,2,0,53 @@ -98,8 +99,10 @@ BRDA:88,16,0,23 BRDA:88,16,1,9 BRDA:89,17,0,16 BRDA:89,17,1,16 -BRDA:104,18,0,24 -BRDA:104,18,1,27 -BRF:36 -BRH:36 +BRDA:101,18,0,2 +BRDA:101,18,1,49 +BRDA:102,19,0,26 +BRDA:102,19,1,25 +BRF:38 +BRH:38 end_of_record diff --git a/esm/index.js b/esm/index.js index 1859844..daa72c4 100644 --- a/esm/index.js +++ b/esm/index.js @@ -97,9 +97,7 @@ const domdiff = ( } } else { - // TODO: this case never happens but it was previously essential. - // anything to further investigate? - // if (currentNodes[currentStart] == null) currentStart++; + if (currentNodes[currentStart] == null) currentStart++; if (currentStart === currentEnd) { parentNode.removeChild(get(currentNodes[currentStart], -1)); } diff --git a/index.js b/index.js index ca635d1..df247ef 100644 --- a/index.js +++ b/index.js @@ -79,9 +79,7 @@ beforeNode // optional item/node to use as insertBefore delimiter parentNode.insertBefore(fragment, place); } } else { - // TODO: this case never happens but it was previously essential. - // anything to further investigate? - // if (currentNodes[currentStart] == null) currentStart++; + if (currentNodes[currentStart] == null) currentStart++; if (currentStart === currentEnd) { parentNode.removeChild(get(currentNodes[currentStart], -1)); } else { diff --git a/min.js b/min.js index af101ff..383d5ff 100644 --- a/min.js +++ b/min.js @@ -1,2 +1,2 @@ var domdiff=function(){"use strict";/*! (c) 2017 Andrea Giammarchi (ISC) */ -var e=function(e){return e};return function(n,r,l,t,f){for(var i=t||e,s=null==f?null:i(f,0),o=0,u=0,a=r.length-1,c=r[0],v=r[a],d=l.length-1,B=l[0],m=l[d];o<=a&&u<=d;)if(null==c)c=r[++o];else if(null==v)v=r[--a];else if(null==B)B=l[++u];else if(null==m)m=l[--d];else if(c==B)c=r[++o],B=l[++u];else if(v==m)v=r[--a],m=l[--d];else if(c==m)n.insertBefore(i(c,1),i(v,-0).nextSibling),c=r[++o],m=l[--d];else if(v==B)n.insertBefore(i(v,1),i(c,0)),v=r[--a],B=l[++u];else{var g=r.indexOf(B);if(g<0)n.insertBefore(i(B,1),i(c,0)),B=l[++u];else{var h=r[g];r[g]=null,n.insertBefore(i(h,1),i(c,0)),B=l[++u]}}if(o<=a||u<=d)if(o>a){var C=l[d+1],D=null==C?s:i(C,0);if(u===d)n.insertBefore(i(l[u],1),D);else{for(var p=n.ownerDocument.createDocumentFragment();u<=d;)p.appendChild(i(l[u++],1));n.insertBefore(p,D)}}else if(o===a)n.removeChild(i(r[o],-1));else{var w=n.ownerDocument.createRange();w.setStartBefore(i(r[o],-1)),w.setEndAfter(i(r[a],-1)),w.deleteContents()}return l}}(); \ No newline at end of file +var e=function(e){return e};return function(n,r,l,t,f){for(var i=t||e,s=null==f?null:i(f,0),o=0,u=0,a=r.length-1,c=r[0],v=r[a],d=l.length-1,B=l[0],m=l[d];o<=a&&u<=d;)if(null==c)c=r[++o];else if(null==v)v=r[--a];else if(null==B)B=l[++u];else if(null==m)m=l[--d];else if(c==B)c=r[++o],B=l[++u];else if(v==m)v=r[--a],m=l[--d];else if(c==m)n.insertBefore(i(c,1),i(v,-0).nextSibling),c=r[++o],m=l[--d];else if(v==B)n.insertBefore(i(v,1),i(c,0)),v=r[--a],B=l[++u];else{var g=r.indexOf(B);if(g<0)n.insertBefore(i(B,1),i(c,0)),B=l[++u];else{var h=r[g];r[g]=null,n.insertBefore(i(h,1),i(c,0)),B=l[++u]}}if(o<=a||u<=d)if(o>a){var C=l[d+1],D=null==C?s:i(C,0);if(u===d)n.insertBefore(i(l[u],1),D);else{for(var p=n.ownerDocument.createDocumentFragment();u<=d;)p.appendChild(i(l[u++],1));n.insertBefore(p,D)}}else if(null==r[o]&&o++,o===a)n.removeChild(i(r[o],-1));else{var w=n.ownerDocument.createRange();w.setStartBefore(i(r[o],-1)),w.setEndAfter(i(r[a],-1)),w.deleteContents()}return l}}(); \ No newline at end of file From 2d69ec22a404d8d737787e38764c4393188a1c4b Mon Sep 17 00:00:00 2001 From: Andrea Giammarchi Date: Fri, 19 Jan 2018 21:10:25 +0100 Subject: [PATCH 25/71] 0.3.6 --- package.json | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/package.json b/package.json index 3f3d528..34b6f67 100644 --- a/package.json +++ b/package.json @@ -1,6 +1,6 @@ { "name": "domdiff", - "version": "0.3.5", + "version": "0.3.6", "description": "A fast and simple way to diff childNodes", "browser": "min.js", "main": "cjs/index.js", From a57a7a4ec9b03f2422f151a087653162d7501767 Mon Sep 17 00:00:00 2001 From: Andrea Giammarchi Date: Sat, 7 Apr 2018 18:31:47 +0200 Subject: [PATCH 26/71] fix #4 - improved performance for segments and list scroll --- cjs/index.js | 53 ++++-- coverage/coverage.json | 2 +- coverage/lcov-report/cjs/index.html | 14 +- coverage/lcov-report/cjs/index.js.html | 213 +++++++++++++++++------- coverage/lcov-report/index.html | 14 +- coverage/lcov.info | 220 ++++++++++++++----------- esm/index.js | 53 ++++-- index.js | 38 ++++- min.js | 2 +- 9 files changed, 404 insertions(+), 205 deletions(-) diff --git a/cjs/index.js b/cjs/index.js index d67feb5..5ed255d 100644 --- a/cjs/index.js +++ b/cjs/index.js @@ -9,6 +9,13 @@ const identity = O => O; +const remove = (parentNode, before, after) => { + const range = parentNode.ownerDocument.createRange(); + range.setStartBefore(before); + range.setEndAfter(after); + range.deleteContents(); +}; + const domdiff = ( parentNode, // where changes happen currentNodes, // Array of current items/nodes @@ -72,13 +79,36 @@ const domdiff = ( futureStartNode = futureNodes[++futureStart]; } else { - let el = currentNodes[index]; - currentNodes[index] = null; - parentNode.insertBefore( - get(el, 1), - get(currentStartNode, 0) - ); - futureStartNode = futureNodes[++futureStart]; + let i = index; + let f = futureStart; + while ( + i <= currentEnd && + f <= futureEnd && + currentNodes[i] === futureNodes[f] + ) { + i++; + f++; + } + if (1 < (i - index)) { + if (--index === currentStart) { + parentNode.removeChild(get(currentStartNode, -1)); + } else { + remove( + parentNode, + get(currentStartNode, -1), + get(currentNodes[index], -1) + ); + } + currentStart = i; + futureStart = f; + currentStartNode = currentNodes[i]; + futureStartNode = futureNodes[f]; + } else { + const el = currentNodes[index]; + currentNodes[index] = null; + parentNode.insertBefore(get(el, 1), get(currentStartNode, 0)); + futureStartNode = futureNodes[++futureStart]; + } } } } @@ -103,10 +133,11 @@ const domdiff = ( parentNode.removeChild(get(currentNodes[currentStart], -1)); } else { - const range = parentNode.ownerDocument.createRange(); - range.setStartBefore(get(currentNodes[currentStart], -1)); - range.setEndAfter(get(currentNodes[currentEnd], -1)); - range.deleteContents(); + remove( + 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  const identity = O => O;   +const remove = (parentNode, before, after) => { + const range = parentNode.ownerDocument.createRange(); + range.setStartBefore(before); + range.setEndAfter(after); + range.deleteContents(); +}; +  const domdiff = ( parentNode, // where changes happen currentNodes, // Array of current items/nodes @@ -349,13 +418,36 @@

futureStartNode = futureNodes[++futureStart]; } else { - let el = currentNodes[index]; - currentNodes[index] = null; - parentNode.insertBefore( - get(el, 1), - get(currentStartNode, 0) - ); - futureStartNode = futureNodes[++futureStart]; + let i = index; + let f = futureStart; + while ( + i <= currentEnd && + f <= futureEnd && + currentNodes[i] === futureNodes[f] + ) { + i++; + f++; + } + if (1 < (i - index)) { + if (--index === currentStart) { + parentNode.removeChild(get(currentStartNode, -1)); + } else { + remove( + parentNode, + get(currentStartNode, -1), + get(currentNodes[index], -1) + ); + } + currentStart = i; + futureStart = f; + currentStartNode = currentNodes[i]; + futureStartNode = futureNodes[f]; + } else { + const el = currentNodes[index]; + currentNodes[index] = null; + parentNode.insertBefore(get(el, 1), get(currentStartNode, 0)); + futureStartNode = futureNodes[++futureStart]; + } } } } @@ -380,10 +472,11 @@

parentNode.removeChild(get(currentNodes[currentStart], -1)); } else { - const range = parentNode.ownerDocument.createRange(); - range.setStartBefore(get(currentNodes[currentStart], -1)); - range.setEndAfter(get(currentNodes[currentEnd], -1)); - range.deleteContents(); + remove( + parentNode, + get(currentNodes[currentStart], -1), + get(currentNodes[currentEnd], -1) + ); } } } @@ -397,7 +490,7 @@

Code coverage - generated by istanbul at Fri Jan 19 2018 21:09:53 GMT+0100 (CET) + generated by istanbul at Sat Apr 07 2018 18:28:47 GMT+0200 (CEST)
diff --git a/coverage/lcov-report/index.html b/coverage/lcov-report/index.html index 562cfee..b59c640 100644 --- a/coverage/lcov-report/index.html +++ b/coverage/lcov-report/index.html @@ -22,12 +22,12 @@

100% Statements - 63/63 + 78/78
100% Branches - 38/38 + 45/45
100% @@ -37,7 +37,7 @@

100% Lines - 61/61 + 76/76

@@ -62,13 +62,13 @@

cjs/
100% - 63/63 + 78/78 100% - 38/38 + 45/45 100% 0/0 100% - 61/61 + 76/76 @@ -77,7 +77,7 @@

Code coverage - generated by istanbul at Fri Jan 19 2018 21:09:53 GMT+0100 (CET) + generated by istanbul at Sat Apr 07 2018 18:28:47 GMT+0200 (CEST)
diff --git a/coverage/lcov.info b/coverage/lcov.info index 436880a..78e3e49 100644 --- a/coverage/lcov.info +++ b/coverage/lcov.info @@ -2,107 +2,129 @@ TN: SF:/home/webreflection/code/domdiff/cjs/index.js FNF:0 FNH:0 -DA:10,559 +DA:10,517 DA:12,1 -DA:19,104 -DA:20,104 -DA:21,104 -DA:22,104 -DA:23,104 -DA:24,104 -DA:25,104 +DA:13,24 +DA:14,24 +DA:15,24 +DA:16,24 +DA:19,1 DA:26,104 DA:27,104 DA:28,104 -DA:29,462 -DA:30,44 -DA:32,418 -DA:33,12 -DA:35,406 -DA:36,22 -DA:38,384 -DA:39,5 -DA:41,379 -DA:42,142 -DA:43,142 -DA:45,237 -DA:46,52 -DA:47,52 -DA:49,185 -DA:50,55 -DA:54,55 -DA:55,55 -DA:57,130 -DA:58,28 -DA:62,28 -DA:63,28 -DA:66,102 -DA:67,102 -DA:68,57 -DA:72,57 -DA:75,45 -DA:76,45 -DA:77,45 -DA:81,45 -DA:85,104 -DA:86,83 -DA:87,32 -DA:88,32 -DA:89,32 -DA:90,16 -DA:93,16 -DA:94,16 -DA:95,48 -DA:97,16 -DA:101,51 -DA:102,51 -DA:103,26 -DA:106,25 -DA:107,25 -DA:108,25 -DA:109,25 -DA:113,104 -DA:116,1 -LF:61 -LH:61 -BRDA:19,1,0,104 -BRDA:19,1,1,102 -BRDA:20,2,0,53 -BRDA:20,2,1,51 -BRDA:28,3,0,566 -BRDA:28,3,1,513 -BRDA:29,4,0,44 -BRDA:29,4,1,418 -BRDA:32,5,0,12 -BRDA:32,5,1,406 -BRDA:35,6,0,22 -BRDA:35,6,1,384 -BRDA:38,7,0,5 -BRDA:38,7,1,379 -BRDA:41,8,0,142 -BRDA:41,8,1,237 -BRDA:45,9,0,52 -BRDA:45,9,1,185 -BRDA:49,10,0,55 -BRDA:49,10,1,130 -BRDA:57,11,0,28 -BRDA:57,11,1,102 -BRDA:67,12,0,57 -BRDA:67,12,1,45 -BRDA:85,13,0,83 -BRDA:85,13,1,21 -BRDA:85,14,0,104 -BRDA:85,14,1,53 -BRDA:86,15,0,32 -BRDA:86,15,1,51 -BRDA:88,16,0,23 -BRDA:88,16,1,9 -BRDA:89,17,0,16 -BRDA:89,17,1,16 -BRDA:101,18,0,2 -BRDA:101,18,1,49 -BRDA:102,19,0,26 -BRDA:102,19,1,25 -BRF:38 -BRH:38 +DA:29,104 +DA:30,104 +DA:31,104 +DA:32,104 +DA:33,104 +DA:34,104 +DA:35,104 +DA:36,421 +DA:37,38 +DA:39,383 +DA:40,3 +DA:42,380 +DA:43,22 +DA:45,358 +DA:46,5 +DA:48,353 +DA:49,135 +DA:50,135 +DA:52,218 +DA:53,52 +DA:54,52 +DA:56,166 +DA:57,55 +DA:61,55 +DA:62,55 +DA:64,111 +DA:65,21 +DA:69,21 +DA:70,21 +DA:73,90 +DA:74,90 +DA:75,55 +DA:79,55 +DA:82,35 +DA:83,35 +DA:84,35 +DA:89,54 +DA:90,54 +DA:92,35 +DA:93,12 +DA:94,11 +DA:96,1 +DA:102,12 +DA:103,12 +DA:104,12 +DA:105,12 +DA:107,23 +DA:108,23 +DA:109,23 +DA:110,23 +DA:115,104 +DA:116,83 +DA:117,34 +DA:118,34 +DA:119,34 +DA:120,13 +DA:123,21 +DA:124,21 +DA:125,58 +DA:127,21 +DA:131,49 +DA:132,49 +DA:133,26 +DA:136,23 +DA:144,104 +DA:147,1 +LF:76 +LH:76 +BRDA:26,1,0,104 +BRDA:26,1,1,102 +BRDA:27,2,0,53 +BRDA:27,2,1,51 +BRDA:35,3,0,525 +BRDA:35,3,1,470 +BRDA:36,4,0,38 +BRDA:36,4,1,383 +BRDA:39,5,0,3 +BRDA:39,5,1,380 +BRDA:42,6,0,22 +BRDA:42,6,1,358 +BRDA:45,7,0,5 +BRDA:45,7,1,353 +BRDA:48,8,0,135 +BRDA:48,8,1,218 +BRDA:52,9,0,52 +BRDA:52,9,1,166 +BRDA:56,10,0,55 +BRDA:56,10,1,111 +BRDA:64,11,0,21 +BRDA:64,11,1,90 +BRDA:74,12,0,55 +BRDA:74,12,1,35 +BRDA:85,13,0,89 +BRDA:85,13,1,82 +BRDA:85,13,2,79 +BRDA:92,14,0,12 +BRDA:92,14,1,23 +BRDA:93,15,0,11 +BRDA:93,15,1,1 +BRDA:115,16,0,83 +BRDA:115,16,1,21 +BRDA:115,17,0,104 +BRDA:115,17,1,55 +BRDA:116,18,0,34 +BRDA:116,18,1,49 +BRDA:118,19,0,25 +BRDA:118,19,1,9 +BRDA:119,20,0,13 +BRDA:119,20,1,21 +BRDA:131,21,0,2 +BRDA:131,21,1,47 +BRDA:132,22,0,26 +BRDA:132,22,1,23 +BRF:45 +BRH:45 end_of_record diff --git a/esm/index.js b/esm/index.js index daa72c4..9e5c0b7 100644 --- a/esm/index.js +++ b/esm/index.js @@ -8,6 +8,13 @@ const identity = O => O; +const remove = (parentNode, before, after) => { + const range = parentNode.ownerDocument.createRange(); + range.setStartBefore(before); + range.setEndAfter(after); + range.deleteContents(); +}; + const domdiff = ( parentNode, // where changes happen currentNodes, // Array of current items/nodes @@ -71,13 +78,36 @@ const domdiff = ( futureStartNode = futureNodes[++futureStart]; } else { - let el = currentNodes[index]; - currentNodes[index] = null; - parentNode.insertBefore( - get(el, 1), - get(currentStartNode, 0) - ); - futureStartNode = futureNodes[++futureStart]; + let i = index; + let f = futureStart; + while ( + i <= currentEnd && + f <= futureEnd && + currentNodes[i] === futureNodes[f] + ) { + i++; + f++; + } + if (1 < (i - index)) { + if (--index === currentStart) { + parentNode.removeChild(get(currentStartNode, -1)); + } else { + remove( + parentNode, + get(currentStartNode, -1), + get(currentNodes[index], -1) + ); + } + currentStart = i; + futureStart = f; + currentStartNode = currentNodes[i]; + futureStartNode = futureNodes[f]; + } else { + const el = currentNodes[index]; + currentNodes[index] = null; + parentNode.insertBefore(get(el, 1), get(currentStartNode, 0)); + futureStartNode = futureNodes[++futureStart]; + } } } } @@ -102,10 +132,11 @@ const domdiff = ( parentNode.removeChild(get(currentNodes[currentStart], -1)); } else { - const range = parentNode.ownerDocument.createRange(); - range.setStartBefore(get(currentNodes[currentStart], -1)); - range.setEndAfter(get(currentNodes[currentEnd], -1)); - range.deleteContents(); + remove( + parentNode, + get(currentNodes[currentStart], -1), + get(currentNodes[currentEnd], -1) + ); } } } diff --git a/index.js b/index.js index df247ef..f7121e9 100644 --- a/index.js +++ b/index.js @@ -13,6 +13,13 @@ var identity = function identity(O) { return O; }; +var remove = function remove(parentNode, before, after) { + var range = parentNode.ownerDocument.createRange(); + range.setStartBefore(before); + range.setEndAfter(after); + range.deleteContents(); +}; + var domdiff = function domdiff(parentNode, // where changes happen currentNodes, // Array of current items/nodes futureNodes, // Array of future items/nodes @@ -58,10 +65,28 @@ beforeNode // optional item/node to use as insertBefore delimiter parentNode.insertBefore(get(futureStartNode, 1), get(currentStartNode, 0)); futureStartNode = futureNodes[++futureStart]; } else { - var el = currentNodes[index]; - currentNodes[index] = null; - parentNode.insertBefore(get(el, 1), get(currentStartNode, 0)); - futureStartNode = futureNodes[++futureStart]; + var i = index; + var f = futureStart; + while (i <= currentEnd && f <= futureEnd && currentNodes[i] === futureNodes[f]) { + i++; + f++; + } + if (1 < i - index) { + if (--index === currentStart) { + parentNode.removeChild(get(currentStartNode, -1)); + } else { + remove(parentNode, get(currentStartNode, -1), get(currentNodes[index], -1)); + } + currentStart = i; + futureStart = f; + currentStartNode = currentNodes[i]; + futureStartNode = futureNodes[f]; + } else { + var el = currentNodes[index]; + currentNodes[index] = null; + parentNode.insertBefore(get(el, 1), get(currentStartNode, 0)); + futureStartNode = futureNodes[++futureStart]; + } } } } @@ -83,10 +108,7 @@ beforeNode // optional item/node to use as insertBefore delimiter if (currentStart === currentEnd) { parentNode.removeChild(get(currentNodes[currentStart], -1)); } else { - var range = parentNode.ownerDocument.createRange(); - range.setStartBefore(get(currentNodes[currentStart], -1)); - range.setEndAfter(get(currentNodes[currentEnd], -1)); - range.deleteContents(); + remove(parentNode, get(currentNodes[currentStart], -1), get(currentNodes[currentEnd], -1)); } } } diff --git a/min.js b/min.js index 383d5ff..fd8234b 100644 --- a/min.js +++ b/min.js @@ -1,2 +1,2 @@ var domdiff=function(){"use strict";/*! (c) 2017 Andrea Giammarchi (ISC) */ -var e=function(e){return e};return function(n,r,l,t,f){for(var i=t||e,s=null==f?null:i(f,0),o=0,u=0,a=r.length-1,c=r[0],v=r[a],d=l.length-1,B=l[0],m=l[d];o<=a&&u<=d;)if(null==c)c=r[++o];else if(null==v)v=r[--a];else if(null==B)B=l[++u];else if(null==m)m=l[--d];else if(c==B)c=r[++o],B=l[++u];else if(v==m)v=r[--a],m=l[--d];else if(c==m)n.insertBefore(i(c,1),i(v,-0).nextSibling),c=r[++o],m=l[--d];else if(v==B)n.insertBefore(i(v,1),i(c,0)),v=r[--a],B=l[++u];else{var g=r.indexOf(B);if(g<0)n.insertBefore(i(B,1),i(c,0)),B=l[++u];else{var h=r[g];r[g]=null,n.insertBefore(i(h,1),i(c,0)),B=l[++u]}}if(o<=a||u<=d)if(o>a){var C=l[d+1],D=null==C?s:i(C,0);if(u===d)n.insertBefore(i(l[u],1),D);else{for(var p=n.ownerDocument.createDocumentFragment();u<=d;)p.appendChild(i(l[u++],1));n.insertBefore(p,D)}}else if(null==r[o]&&o++,o===a)n.removeChild(i(r[o],-1));else{var w=n.ownerDocument.createRange();w.setStartBefore(i(r[o],-1)),w.setEndAfter(i(r[a],-1)),w.deleteContents()}return l}}(); \ No newline at end of file +var e=function(e){return e},n=function(e,n,r){var l=e.ownerDocument.createRange();l.setStartBefore(n),l.setEndAfter(r),l.deleteContents()};return function(r,l,t,f,i){for(var o=f||e,s=null==i?null:o(i,0),u=0,a=0,v=l.length-1,c=l[0],d=l[v],m=t.length-1,B=t[0],g=t[m];u<=v&&a<=m;)if(null==c)c=l[++u];else if(null==d)d=l[--v];else if(null==B)B=t[++a];else if(null==g)g=t[--m];else if(c==B)c=l[++u],B=t[++a];else if(d==g)d=l[--v],g=t[--m];else if(c==g)r.insertBefore(o(c,1),o(d,-0).nextSibling),c=l[++u],g=t[--m];else if(d==B)r.insertBefore(o(d,1),o(c,0)),d=l[--v],B=t[++a];else{var h=l.indexOf(B);if(h<0)r.insertBefore(o(B,1),o(c,0)),B=t[++a];else{for(var C=h,D=a;C<=v&&D<=m&&l[C]===t[D];)C++,D++;if(1v){var w=t[m+1],x=null==w?s:o(w,0);if(a===m)r.insertBefore(o(t[a],1),x);else{for(var S=r.ownerDocument.createDocumentFragment();a<=m;)S.appendChild(o(t[a++],1));r.insertBefore(S,x)}}else null==l[u]&&u++,u===v?r.removeChild(o(l[u],-1)):n(r,o(l[u],-1),o(l[v],-1));return t}}(); \ No newline at end of file From 31da6fd8f8db68bd6369578a4077c9c8768f736e Mon Sep 17 00:00:00 2001 From: Andrea Giammarchi Date: Sat, 7 Apr 2018 18:31:56 +0200 Subject: [PATCH 27/71] 0.4.0 --- package.json | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/package.json b/package.json index 34b6f67..e130705 100644 --- a/package.json +++ b/package.json @@ -1,6 +1,6 @@ { "name": "domdiff", - "version": "0.3.6", + "version": "0.4.0", "description": "A fast and simple way to diff childNodes", "browser": "min.js", "main": "cjs/index.js", From a28f463510ac6043a51232a90ee806fade75bc99 Mon Sep 17 00:00:00 2001 From: Andrea Giammarchi Date: Mon, 18 Jun 2018 11:29:08 +0200 Subject: [PATCH 28/71] fix #6 - do not break on some funny sort case --- cjs/index.js | 15 +- coverage/coverage.json | 2 +- coverage/lcov-report/cjs/index.html | 14 +- coverage/lcov-report/cjs/index.js.html | 135 ++++++++------ coverage/lcov-report/index.html | 14 +- coverage/lcov.info | 247 +++++++++++++------------ esm/index.js | 15 +- index.js | 12 +- min.js | 2 +- test/test.js | 36 ++++ 10 files changed, 281 insertions(+), 211 deletions(-) diff --git a/cjs/index.js b/cjs/index.js index 5ed255d..208e6f4 100644 --- a/cjs/index.js +++ b/cjs/index.js @@ -10,10 +10,14 @@ const identity = O => O; const remove = (parentNode, before, after) => { - const range = parentNode.ownerDocument.createRange(); - range.setStartBefore(before); - range.setEndAfter(after); - range.deleteContents(); + if (after == null) { + parentNode.removeChild(before); + } else { + const range = parentNode.ownerDocument.createRange(); + range.setStartBefore(before); + range.setEndAfter(after); + range.deleteContents(); + } }; const domdiff = ( @@ -128,7 +132,8 @@ const domdiff = ( } } else { - if (currentNodes[currentStart] == null) 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      -517× +532×   1× +25× +1× +  24× 24× 24× 24×     +  1×     @@ -215,37 +224,37 @@

      -104× -104× -104× -104× -104× -104× -104× -104× -104× -104× -421× +107× +107× +107× +107× +107× +107× +107× +107× +107× +107× +424× 38×   -383× +386× 3×   -380× +383× 22×   -358× +361× 5×   -353× +356× 135× 135×   -218× +221× 52× 52×   -166× +169× 55×     @@ -253,7 +262,7 @@

55× 55×   -111× +114× 21×     @@ -262,8 +271,8 @@

21×     -90× -90× +93× +93× 55×     @@ -271,58 +280,59 @@

55×     -35× -35× -35× +38× +38× +38×         -54× -54× +58× +58×   -35× -12× +38× +13× 11×   -1× +2×           -12× -12× -12× -12× +13× +13× +13× +13×   -23× -23× -23× -23× +25× +25× +25× +25×         -104× -83× -34× -34× -34× +107× +86× +36× +36× +36× 13×     -21× -21× -58× +23× +23× +66×   -21× +23×       -49× -49× -26× +50× +2× +50× +27×     23× @@ -333,7 +343,7 @@

      -104× +107×     1× @@ -349,10 +359,14 @@

const identity = O => O;   const remove = (parentNode, before, after) => { - const range = parentNode.ownerDocument.createRange(); - range.setStartBefore(before); - range.setEndAfter(after); - range.deleteContents(); + if (after == null) { + parentNode.removeChild(before); + } else { + const range = parentNode.ownerDocument.createRange(); + range.setStartBefore(before); + range.setEndAfter(after); + range.deleteContents(); + } };   const domdiff = ( @@ -467,7 +481,8 @@

} } else { - if (currentNodes[currentStart] == null) currentStart++; + if (currentNodes[currentStart] == null) + currentStart++; if (currentStart === currentEnd) { parentNode.removeChild(get(currentNodes[currentStart], -1)); } @@ -490,7 +505,7 @@

Code coverage - generated by istanbul at Sat Apr 07 2018 18:28:47 GMT+0200 (CEST) + generated by istanbul at Mon Jun 18 2018 11:28:15 GMT+0200 (CEST)
diff --git a/coverage/lcov-report/index.html b/coverage/lcov-report/index.html index b59c640..e68fbf4 100644 --- a/coverage/lcov-report/index.html +++ b/coverage/lcov-report/index.html @@ -22,12 +22,12 @@

100% Statements - 78/78 + 80/80
100% Branches - 45/45 + 47/47
100% @@ -37,7 +37,7 @@

100% Lines - 76/76 + 79/79

@@ -62,13 +62,13 @@

cjs/
100% - 78/78 + 80/80 100% - 45/45 + 47/47 100% 0/0 100% - 76/76 + 79/79 @@ -77,7 +77,7 @@

Code coverage - generated by istanbul at Sat Apr 07 2018 18:28:47 GMT+0200 (CEST) + generated by istanbul at Mon Jun 18 2018 11:28:15 GMT+0200 (CEST)
diff --git a/coverage/lcov.info b/coverage/lcov.info index 78e3e49..2c2c0a0 100644 --- a/coverage/lcov.info +++ b/coverage/lcov.info @@ -1,130 +1,135 @@ TN: -SF:/home/webreflection/code/domdiff/cjs/index.js +SF:/Users/agiammarchi/git/domdiff/cjs/index.js FNF:0 FNH:0 -DA:10,517 +DA:10,532 DA:12,1 -DA:13,24 -DA:14,24 -DA:15,24 +DA:13,25 +DA:14,1 DA:16,24 -DA:19,1 -DA:26,104 -DA:27,104 -DA:28,104 -DA:29,104 -DA:30,104 -DA:31,104 -DA:32,104 -DA:33,104 -DA:34,104 -DA:35,104 -DA:36,421 -DA:37,38 -DA:39,383 -DA:40,3 -DA:42,380 -DA:43,22 -DA:45,358 -DA:46,5 -DA:48,353 -DA:49,135 -DA:50,135 -DA:52,218 -DA:53,52 -DA:54,52 -DA:56,166 -DA:57,55 +DA:17,24 +DA:18,24 +DA:19,24 +DA:23,1 +DA:30,107 +DA:31,107 +DA:32,107 +DA:33,107 +DA:34,107 +DA:35,107 +DA:36,107 +DA:37,107 +DA:38,107 +DA:39,107 +DA:40,424 +DA:41,38 +DA:43,386 +DA:44,3 +DA:46,383 +DA:47,22 +DA:49,361 +DA:50,5 +DA:52,356 +DA:53,135 +DA:54,135 +DA:56,221 +DA:57,52 +DA:58,52 +DA:60,169 DA:61,55 -DA:62,55 -DA:64,111 -DA:65,21 +DA:65,55 +DA:66,55 +DA:68,114 DA:69,21 -DA:70,21 -DA:73,90 -DA:74,90 -DA:75,55 +DA:73,21 +DA:74,21 +DA:77,93 +DA:78,93 DA:79,55 -DA:82,35 -DA:83,35 -DA:84,35 -DA:89,54 -DA:90,54 -DA:92,35 -DA:93,12 -DA:94,11 -DA:96,1 -DA:102,12 -DA:103,12 -DA:104,12 -DA:105,12 -DA:107,23 -DA:108,23 -DA:109,23 -DA:110,23 -DA:115,104 -DA:116,83 -DA:117,34 -DA:118,34 -DA:119,34 -DA:120,13 -DA:123,21 -DA:124,21 -DA:125,58 -DA:127,21 -DA:131,49 -DA:132,49 -DA:133,26 -DA:136,23 -DA:144,104 -DA:147,1 -LF:76 -LH:76 -BRDA:26,1,0,104 -BRDA:26,1,1,102 -BRDA:27,2,0,53 -BRDA:27,2,1,51 -BRDA:35,3,0,525 -BRDA:35,3,1,470 -BRDA:36,4,0,38 -BRDA:36,4,1,383 -BRDA:39,5,0,3 -BRDA:39,5,1,380 -BRDA:42,6,0,22 -BRDA:42,6,1,358 -BRDA:45,7,0,5 -BRDA:45,7,1,353 -BRDA:48,8,0,135 -BRDA:48,8,1,218 -BRDA:52,9,0,52 -BRDA:52,9,1,166 -BRDA:56,10,0,55 -BRDA:56,10,1,111 -BRDA:64,11,0,21 -BRDA:64,11,1,90 -BRDA:74,12,0,55 -BRDA:74,12,1,35 -BRDA:85,13,0,89 -BRDA:85,13,1,82 -BRDA:85,13,2,79 -BRDA:92,14,0,12 -BRDA:92,14,1,23 -BRDA:93,15,0,11 -BRDA:93,15,1,1 -BRDA:115,16,0,83 -BRDA:115,16,1,21 -BRDA:115,17,0,104 -BRDA:115,17,1,55 -BRDA:116,18,0,34 -BRDA:116,18,1,49 -BRDA:118,19,0,25 -BRDA:118,19,1,9 -BRDA:119,20,0,13 -BRDA:119,20,1,21 -BRDA:131,21,0,2 -BRDA:131,21,1,47 -BRDA:132,22,0,26 -BRDA:132,22,1,23 -BRF:45 -BRH:45 +DA:83,55 +DA:86,38 +DA:87,38 +DA:88,38 +DA:93,58 +DA:94,58 +DA:96,38 +DA:97,13 +DA:98,11 +DA:100,2 +DA:106,13 +DA:107,13 +DA:108,13 +DA:109,13 +DA:111,25 +DA:112,25 +DA:113,25 +DA:114,25 +DA:119,107 +DA:120,86 +DA:121,36 +DA:122,36 +DA:123,36 +DA:124,13 +DA:127,23 +DA:128,23 +DA:129,66 +DA:131,23 +DA:135,50 +DA:136,2 +DA:137,50 +DA:138,27 +DA:141,23 +DA:149,107 +DA:152,1 +LF:79 +LH:79 +BRDA:13,1,0,1 +BRDA:13,1,1,24 +BRDA:30,2,0,107 +BRDA:30,2,1,105 +BRDA:31,3,0,56 +BRDA:31,3,1,51 +BRDA:39,4,0,531 +BRDA:39,4,1,474 +BRDA:40,5,0,38 +BRDA:40,5,1,386 +BRDA:43,6,0,3 +BRDA:43,6,1,383 +BRDA:46,7,0,22 +BRDA:46,7,1,361 +BRDA:49,8,0,5 +BRDA:49,8,1,356 +BRDA:52,9,0,135 +BRDA:52,9,1,221 +BRDA:56,10,0,52 +BRDA:56,10,1,169 +BRDA:60,11,0,55 +BRDA:60,11,1,114 +BRDA:68,12,0,21 +BRDA:68,12,1,93 +BRDA:78,13,0,55 +BRDA:78,13,1,38 +BRDA:89,14,0,96 +BRDA:89,14,1,88 +BRDA:89,14,2,85 +BRDA:96,15,0,13 +BRDA:96,15,1,25 +BRDA:97,16,0,11 +BRDA:97,16,1,2 +BRDA:119,17,0,86 +BRDA:119,17,1,21 +BRDA:119,18,0,107 +BRDA:119,18,1,57 +BRDA:120,19,0,36 +BRDA:120,19,1,50 +BRDA:122,20,0,27 +BRDA:122,20,1,9 +BRDA:123,21,0,13 +BRDA:123,21,1,23 +BRDA:135,22,0,2 +BRDA:135,22,1,48 +BRDA:137,23,0,27 +BRDA:137,23,1,23 +BRF:47 +BRH:47 end_of_record diff --git a/esm/index.js b/esm/index.js index 9e5c0b7..368467c 100644 --- a/esm/index.js +++ b/esm/index.js @@ -9,10 +9,14 @@ const identity = O => O; const remove = (parentNode, before, after) => { - const range = parentNode.ownerDocument.createRange(); - range.setStartBefore(before); - range.setEndAfter(after); - range.deleteContents(); + if (after == null) { + parentNode.removeChild(before); + } else { + const range = parentNode.ownerDocument.createRange(); + range.setStartBefore(before); + range.setEndAfter(after); + range.deleteContents(); + } }; const domdiff = ( @@ -127,7 +131,8 @@ const domdiff = ( } } else { - if (currentNodes[currentStart] == null) currentStart++; + if (currentNodes[currentStart] == null) + currentStart++; if (currentStart === currentEnd) { parentNode.removeChild(get(currentNodes[currentStart], -1)); } diff --git a/index.js b/index.js index f7121e9..9229c35 100644 --- a/index.js +++ b/index.js @@ -14,10 +14,14 @@ var identity = function identity(O) { }; var remove = function remove(parentNode, before, after) { - var range = parentNode.ownerDocument.createRange(); - range.setStartBefore(before); - range.setEndAfter(after); - range.deleteContents(); + if (after == null) { + parentNode.removeChild(before); + } else { + var range = parentNode.ownerDocument.createRange(); + range.setStartBefore(before); + range.setEndAfter(after); + range.deleteContents(); + } }; var domdiff = function domdiff(parentNode, // where changes happen diff --git a/min.js b/min.js index fd8234b..438803e 100644 --- a/min.js +++ b/min.js @@ -1,2 +1,2 @@ var domdiff=function(){"use strict";/*! (c) 2017 Andrea Giammarchi (ISC) */ -var e=function(e){return e},n=function(e,n,r){var l=e.ownerDocument.createRange();l.setStartBefore(n),l.setEndAfter(r),l.deleteContents()};return function(r,l,t,f,i){for(var o=f||e,s=null==i?null:o(i,0),u=0,a=0,v=l.length-1,c=l[0],d=l[v],m=t.length-1,B=t[0],g=t[m];u<=v&&a<=m;)if(null==c)c=l[++u];else if(null==d)d=l[--v];else if(null==B)B=t[++a];else if(null==g)g=t[--m];else if(c==B)c=l[++u],B=t[++a];else if(d==g)d=l[--v],g=t[--m];else if(c==g)r.insertBefore(o(c,1),o(d,-0).nextSibling),c=l[++u],g=t[--m];else if(d==B)r.insertBefore(o(d,1),o(c,0)),d=l[--v],B=t[++a];else{var h=l.indexOf(B);if(h<0)r.insertBefore(o(B,1),o(c,0)),B=t[++a];else{for(var C=h,D=a;C<=v&&D<=m&&l[C]===t[D];)C++,D++;if(1v){var w=t[m+1],x=null==w?s:o(w,0);if(a===m)r.insertBefore(o(t[a],1),x);else{for(var S=r.ownerDocument.createDocumentFragment();a<=m;)S.appendChild(o(t[a++],1));r.insertBefore(S,x)}}else null==l[u]&&u++,u===v?r.removeChild(o(l[u],-1)):n(r,o(l[u],-1),o(l[v],-1));return t}}(); \ No newline at end of file +var e=function(e){return e},n=function(e,n,r){if(null==r)e.removeChild(n);else{var l=e.ownerDocument.createRange();l.setStartBefore(n),l.setEndAfter(r),l.deleteContents()}};return function(r,l,i,f,t){for(var o=f||e,s=null==t?null:o(t,0),u=0,a=0,v=l.length-1,c=l[0],d=l[v],m=i.length-1,B=i[0],h=i[m];u<=v&&a<=m;)if(null==c)c=l[++u];else if(null==d)d=l[--v];else if(null==B)B=i[++a];else if(null==h)h=i[--m];else if(c==B)c=l[++u],B=i[++a];else if(d==h)d=l[--v],h=i[--m];else if(c==h)r.insertBefore(o(c,1),o(d,-0).nextSibling),c=l[++u],h=i[--m];else if(d==B)r.insertBefore(o(d,1),o(c,0)),d=l[--v],B=i[++a];else{var g=l.indexOf(B);if(g<0)r.insertBefore(o(B,1),o(c,0)),B=i[++a];else{for(var C=g,D=a;C<=v&&D<=m&&l[C]===i[D];)C++,D++;if(1v){var w=i[m+1],x=null==w?s:o(w,0);if(a===m)r.insertBefore(o(i[a],1),x);else{for(var S=r.ownerDocument.createDocumentFragment();a<=m;)S.appendChild(o(i[a++],1));r.insertBefore(S,x)}}else null==l[u]&&u++,u===v?r.removeChild(o(l[u],-1)):n(r,o(l[u],-1),o(l[v],-1));return i}}(); \ No newline at end of file diff --git a/test/test.js b/test/test.js index f7c4fa4..4f2cc37 100644 --- a/test/test.js +++ b/test/test.js @@ -949,5 +949,41 @@ newState = domdiff( ); compare(newState, 'a'); +newState = domdiff( + document.body, + newState, + [] +); + +var data = [ + {"id": 4054, "title": "Serie 2"}, + {"id": 3982, "title": "Serie 3"}, + {"id": 4016, "title": "Gracias"}, + {"id":3984, "title": "Comparte"}, + {"id":3952, "title": "Lección 1"}, + {"id":3955, "title": "Lección 2"} +]; + +var wm = new WeakMap; + +var getItem = function (item) { return wm.get(item); }; + +data.forEach(function (item) { + wm.set(item, document.createTextNode(item.id + ': ' + item.title)); +}); + +newState = domdiff( + document.body, + newState, + data.slice().map(getItem) +); + +newState = domdiff( + document.body, + newState, + data.slice().sort(function (a, b) { + return a.title.localeCompare(b.title); + }).map(getItem) +); tressa.end(); From f1b50d8787879a1fe14df2e7442453f181526ee3 Mon Sep 17 00:00:00 2001 From: Andrea Giammarchi Date: Mon, 18 Jun 2018 11:29:12 +0200 Subject: [PATCH 29/71] 0.4.1 --- package.json | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/package.json b/package.json index e130705..67cbb3d 100644 --- a/package.json +++ b/package.json @@ -1,6 +1,6 @@ { "name": "domdiff", - "version": "0.4.0", + "version": "0.4.1", "description": "A fast and simple way to diff childNodes", "browser": "min.js", "main": "cjs/index.js", From 0a308e52a98d5a5b579cc5af3775ef3232750afd Mon Sep 17 00:00:00 2001 From: Andrea Giammarchi Date: Mon, 18 Jun 2018 16:44:28 +0200 Subject: [PATCH 30/71] better fix for previous fix --- cjs/index.js | 18 ++++---- coverage/coverage.json | 2 +- coverage/lcov-report/cjs/index.html | 2 +- coverage/lcov-report/cjs/index.js.html | 28 +++++++----- coverage/lcov-report/index.html | 2 +- coverage/lcov.info | 62 +++++++++++++------------- esm/index.js | 18 ++++---- index.js | 12 ++--- min.js | 2 +- test/test.js | 6 +-- 10 files changed, 81 insertions(+), 71 deletions(-) diff --git a/cjs/index.js b/cjs/index.js index 208e6f4..8b7deb6 100644 --- a/cjs/index.js +++ b/cjs/index.js @@ -9,13 +9,13 @@ const identity = O => O; -const remove = (parentNode, before, after) => { +const remove = (get, parentNode, before, after) => { if (after == null) { - parentNode.removeChild(before); + parentNode.removeChild(get(before, -1)); } else { const range = parentNode.ownerDocument.createRange(); - range.setStartBefore(before); - range.setEndAfter(after); + range.setStartBefore(get(before, -1)); + range.setEndAfter(get(after, -1)); range.deleteContents(); } }; @@ -98,9 +98,10 @@ const domdiff = ( parentNode.removeChild(get(currentStartNode, -1)); } else { remove( + get, parentNode, - get(currentStartNode, -1), - get(currentNodes[index], 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      +  107×     @@ -358,13 +362,13 @@

  const identity = O => O;   -const remove = (parentNode, before, after) => { +const remove = (get, parentNode, before, after) => { if (after == null) { - parentNode.removeChild(before); + parentNode.removeChild(get(before, -1)); } else { const range = parentNode.ownerDocument.createRange(); - range.setStartBefore(before); - range.setEndAfter(after); + range.setStartBefore(get(before, -1)); + range.setEndAfter(get(after, -1)); range.deleteContents(); } }; @@ -447,9 +451,10 @@

parentNode.removeChild(get(currentStartNode, -1)); } else { remove( + get, parentNode, - get(currentStartNode, -1), - get(currentNodes[index], -1) + currentStartNode, + currentNodes[index] ); } currentStart = i; @@ -488,9 +493,10 @@

} else { remove( + get, parentNode, - get(currentNodes[currentStart], -1), - get(currentNodes[currentEnd], -1) + currentNodes[currentStart], + currentNodes[currentEnd] ); } } @@ -505,7 +511,7 @@

Code coverage - generated by istanbul at Mon Jun 18 2018 11:28:15 GMT+0200 (CEST) + generated by istanbul at Mon Jun 18 2018 16:44:14 GMT+0200 (CEST)
diff --git a/coverage/lcov-report/index.html b/coverage/lcov-report/index.html index e68fbf4..41ab133 100644 --- a/coverage/lcov-report/index.html +++ b/coverage/lcov-report/index.html @@ -77,7 +77,7 @@

Code coverage - generated by istanbul at Mon Jun 18 2018 11:28:15 GMT+0200 (CEST) + generated by istanbul at Mon Jun 18 2018 16:44:14 GMT+0200 (CEST)
diff --git a/coverage/lcov.info b/coverage/lcov.info index 2c2c0a0..114f9a9 100644 --- a/coverage/lcov.info +++ b/coverage/lcov.info @@ -2,7 +2,7 @@ TN: SF:/Users/agiammarchi/git/domdiff/cjs/index.js FNF:0 FNH:0 -DA:10,532 +DA:10,531 DA:12,1 DA:13,25 DA:14,1 @@ -56,31 +56,31 @@ DA:96,38 DA:97,13 DA:98,11 DA:100,2 -DA:106,13 DA:107,13 DA:108,13 DA:109,13 -DA:111,25 +DA:110,13 DA:112,25 DA:113,25 DA:114,25 -DA:119,107 -DA:120,86 -DA:121,36 +DA:115,25 +DA:120,107 +DA:121,86 DA:122,36 DA:123,36 -DA:124,13 -DA:127,23 +DA:124,36 +DA:125,13 DA:128,23 -DA:129,66 -DA:131,23 -DA:135,50 -DA:136,2 -DA:137,50 -DA:138,27 -DA:141,23 -DA:149,107 -DA:152,1 +DA:129,23 +DA:130,66 +DA:132,23 +DA:136,50 +DA:137,2 +DA:138,50 +DA:139,27 +DA:142,23 +DA:151,107 +DA:154,1 LF:79 LH:79 BRDA:13,1,0,1 @@ -116,20 +116,20 @@ BRDA:96,15,0,13 BRDA:96,15,1,25 BRDA:97,16,0,11 BRDA:97,16,1,2 -BRDA:119,17,0,86 -BRDA:119,17,1,21 -BRDA:119,18,0,107 -BRDA:119,18,1,57 -BRDA:120,19,0,36 -BRDA:120,19,1,50 -BRDA:122,20,0,27 -BRDA:122,20,1,9 -BRDA:123,21,0,13 -BRDA:123,21,1,23 -BRDA:135,22,0,2 -BRDA:135,22,1,48 -BRDA:137,23,0,27 -BRDA:137,23,1,23 +BRDA:120,17,0,86 +BRDA:120,17,1,21 +BRDA:120,18,0,107 +BRDA:120,18,1,57 +BRDA:121,19,0,36 +BRDA:121,19,1,50 +BRDA:123,20,0,27 +BRDA:123,20,1,9 +BRDA:124,21,0,13 +BRDA:124,21,1,23 +BRDA:136,22,0,2 +BRDA:136,22,1,48 +BRDA:138,23,0,27 +BRDA:138,23,1,23 BRF:47 BRH:47 end_of_record diff --git a/esm/index.js b/esm/index.js index 368467c..c4b9f6e 100644 --- a/esm/index.js +++ b/esm/index.js @@ -8,13 +8,13 @@ const identity = O => O; -const remove = (parentNode, before, after) => { +const remove = (get, parentNode, before, after) => { if (after == null) { - parentNode.removeChild(before); + parentNode.removeChild(get(before, -1)); } else { const range = parentNode.ownerDocument.createRange(); - range.setStartBefore(before); - range.setEndAfter(after); + range.setStartBefore(get(before, -1)); + range.setEndAfter(get(after, -1)); range.deleteContents(); } }; @@ -97,9 +97,10 @@ const domdiff = ( parentNode.removeChild(get(currentStartNode, -1)); } else { remove( + get, parentNode, - get(currentStartNode, -1), - get(currentNodes[index], -1) + currentStartNode, + currentNodes[index] ); } currentStart = i; @@ -138,9 +139,10 @@ const domdiff = ( } else { remove( + get, parentNode, - get(currentNodes[currentStart], -1), - get(currentNodes[currentEnd], -1) + currentNodes[currentStart], + currentNodes[currentEnd] ); } } diff --git a/index.js b/index.js index 9229c35..e876d6b 100644 --- a/index.js +++ b/index.js @@ -13,13 +13,13 @@ var identity = function identity(O) { return O; }; -var remove = function remove(parentNode, before, after) { +var remove = function remove(get, parentNode, before, after) { if (after == null) { - parentNode.removeChild(before); + parentNode.removeChild(get(before, -1)); } else { var range = parentNode.ownerDocument.createRange(); - range.setStartBefore(before); - range.setEndAfter(after); + range.setStartBefore(get(before, -1)); + range.setEndAfter(get(after, -1)); range.deleteContents(); } }; @@ -79,7 +79,7 @@ beforeNode // optional item/node to use as insertBefore delimiter if (--index === currentStart) { parentNode.removeChild(get(currentStartNode, -1)); } else { - remove(parentNode, get(currentStartNode, -1), get(currentNodes[index], -1)); + remove(get, parentNode, currentStartNode, currentNodes[index]); } currentStart = i; futureStart = f; @@ -112,7 +112,7 @@ beforeNode // optional item/node to use as insertBefore delimiter if (currentStart === currentEnd) { parentNode.removeChild(get(currentNodes[currentStart], -1)); } else { - remove(parentNode, get(currentNodes[currentStart], -1), get(currentNodes[currentEnd], -1)); + remove(get, parentNode, currentNodes[currentStart], currentNodes[currentEnd]); } } } diff --git a/min.js b/min.js index 438803e..3018816 100644 --- a/min.js +++ b/min.js @@ -1,2 +1,2 @@ var domdiff=function(){"use strict";/*! (c) 2017 Andrea Giammarchi (ISC) */ -var e=function(e){return e},n=function(e,n,r){if(null==r)e.removeChild(n);else{var l=e.ownerDocument.createRange();l.setStartBefore(n),l.setEndAfter(r),l.deleteContents()}};return function(r,l,i,f,t){for(var o=f||e,s=null==t?null:o(t,0),u=0,a=0,v=l.length-1,c=l[0],d=l[v],m=i.length-1,B=i[0],h=i[m];u<=v&&a<=m;)if(null==c)c=l[++u];else if(null==d)d=l[--v];else if(null==B)B=i[++a];else if(null==h)h=i[--m];else if(c==B)c=l[++u],B=i[++a];else if(d==h)d=l[--v],h=i[--m];else if(c==h)r.insertBefore(o(c,1),o(d,-0).nextSibling),c=l[++u],h=i[--m];else if(d==B)r.insertBefore(o(d,1),o(c,0)),d=l[--v],B=i[++a];else{var g=l.indexOf(B);if(g<0)r.insertBefore(o(B,1),o(c,0)),B=i[++a];else{for(var C=g,D=a;C<=v&&D<=m&&l[C]===i[D];)C++,D++;if(1v){var w=i[m+1],x=null==w?s:o(w,0);if(a===m)r.insertBefore(o(i[a],1),x);else{for(var S=r.ownerDocument.createDocumentFragment();a<=m;)S.appendChild(o(i[a++],1));r.insertBefore(S,x)}}else null==l[u]&&u++,u===v?r.removeChild(o(l[u],-1)):n(r,o(l[u],-1),o(l[v],-1));return i}}(); \ No newline at end of file +var e=function(e){return e},n=function(e,n,r,l){if(null==l)n.removeChild(e(r,-1));else{var i=n.ownerDocument.createRange();i.setStartBefore(e(r,-1)),i.setEndAfter(e(l,-1)),i.deleteContents()}};return function(r,l,i,f,t){for(var o=f||e,s=null==t?null:o(t,0),u=0,a=0,v=l.length-1,c=l[0],d=l[v],m=i.length-1,B=i[0],h=i[m];u<=v&&a<=m;)if(null==c)c=l[++u];else if(null==d)d=l[--v];else if(null==B)B=i[++a];else if(null==h)h=i[--m];else if(c==B)c=l[++u],B=i[++a];else if(d==h)d=l[--v],h=i[--m];else if(c==h)r.insertBefore(o(c,1),o(d,-0).nextSibling),c=l[++u],h=i[--m];else if(d==B)r.insertBefore(o(d,1),o(c,0)),d=l[--v],B=i[++a];else{var g=l.indexOf(B);if(g<0)r.insertBefore(o(B,1),o(c,0)),B=i[++a];else{for(var C=g,D=a;C<=v&&D<=m&&l[C]===i[D];)C++,D++;if(1v){var w=i[m+1],x=null==w?s:o(w,0);if(a===m)r.insertBefore(o(i[a],1),x);else{for(var S=r.ownerDocument.createDocumentFragment();a<=m;)S.appendChild(o(i[a++],1));r.insertBefore(S,x)}}else null==l[u]&&u++,u===v?r.removeChild(o(l[u],-1)):n(o,r,l[u],l[v]);return i}}(); \ No newline at end of file diff --git a/test/test.js b/test/test.js index 4f2cc37..4e6563e 100644 --- a/test/test.js +++ b/test/test.js @@ -964,12 +964,12 @@ var data = [ {"id":3955, "title": "Lección 2"} ]; -var wm = new WeakMap; +var wm = {}; -var getItem = function (item) { return wm.get(item); }; +var getItem = function (item) { return wm[item.id]; }; data.forEach(function (item) { - wm.set(item, document.createTextNode(item.id + ': ' + item.title)); + wm[item.id] = document.createTextNode(item.id + ': ' + item.title); }); newState = domdiff( From 7471ca45bb81c4525e37f693986ad08d54dcdf69 Mon Sep 17 00:00:00 2001 From: Andrea Giammarchi Date: Mon, 18 Jun 2018 16:44:32 +0200 Subject: [PATCH 31/71] 0.4.2 --- package.json | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/package.json b/package.json index 67cbb3d..a1362e4 100644 --- a/package.json +++ b/package.json @@ -1,6 +1,6 @@ { "name": "domdiff", - "version": "0.4.1", + "version": "0.4.2", "description": "A fast and simple way to diff childNodes", "browser": "min.js", "main": "cjs/index.js", From 41b1087a8e7637ca2e8bfa4150d3c08cdcffcb3d Mon Sep 17 00:00:00 2001 From: Andrea Giammarchi Date: Sun, 24 Jun 2018 15:21:11 +0200 Subject: [PATCH 32/71] V1 - New signature with compare(a, b) hooks --- README.md | 22 ++- cjs/index.js | 23 ++- coverage/coverage.json | 2 +- coverage/lcov-report/cjs/index.html | 14 +- coverage/lcov-report/cjs/index.js.html | 47 +++-- coverage/lcov-report/index.html | 14 +- coverage/lcov.info | 252 +++++++++++++------------ esm/index.js | 23 ++- index.js | 24 ++- min.js | 2 +- test/test.js | 157 ++++++--------- 11 files changed, 293 insertions(+), 287 deletions(-) diff --git a/README.md b/README.md index 627f5a7..80d4a5d 100644 --- a/README.md +++ b/README.md @@ -5,6 +5,10 @@ A vDOM-less implementation of the [snabbdom](https://github.com/snabbdom/snabbdom) diffing logic. +#### V1 breaking change + +The signature has moved from `parent, current[], future[], getNode(), beforeNode` to `parent, current[], future[], {before, compare(), node()}`. + ### Signature @@ -13,8 +17,10 @@ futureNodes = domdiff( parentNode, // where changes happen currentNodes, // Array of current items/nodes futureNodes, // Array of future items/nodes (returned) - getNode, // optional way to retrieve a node from an item - beforeNode // optional item/node to use as insertBefore delimiter + options // optional object with one of the following properties + // before: domNode + // compare(generic, generic) => true if same generic + // node(generic) => Node ); ``` @@ -58,9 +64,9 @@ parentNode.textContent; Every. JavaScript. Engine. -### A `getNode` callback for complex data +### A `{node: (generic, info) => node}` callback for complex data -The `getNode(item, info)` is invoked per each operation on the DOM. +The optional `{node: (generic, info) => node}` is invoked per each operation on the DOM. This can be useful to represent node through wrappers, whenever that is needed. @@ -74,7 +80,7 @@ The passed `info` value can be: [Example](https://codepen.io/WebReflection/pen/bYJVPd?editors=0010) ```js -function getNode(item, i) { +function node(item, i) { // case removal or case after if ((1 / i) < 0) { // case removal @@ -128,7 +134,7 @@ let content = domdiff( document.body, [], [Bob, and, Lucy], - getNode + {node} ); // ... later on ... @@ -136,7 +142,7 @@ content = domdiff( document.body, content, [Lucy, and, Bob], - getNode + {node} ); // clean up @@ -144,7 +150,7 @@ domdiff( document.body, content, [], - getNode + {node} ); ``` diff --git a/cjs/index.js b/cjs/index.js index 8b7deb6..cb01ee8 100644 --- a/cjs/index.js +++ b/cjs/index.js @@ -7,6 +7,8 @@ * @credits https://github.com/snabbdom/snabbdom */ +const eqeq = (a, b) => a == b; + const identity = O => O; const remove = (get, parentNode, before, after) => { @@ -24,11 +26,16 @@ const domdiff = ( parentNode, // where changes happen currentNodes, // Array of current items/nodes futureNodes, // Array of future items/nodes - getNode, // optional way to retrieve a node from an item - beforeNode // optional item/node to use as insertBefore delimiter + options // optional object with one of the following properties + // before: domNode + // compare(generic, generic) => true if same generic + // node(generic) => Node ) => { - const get = getNode || identity; - const before = beforeNode == null ? null : get(beforeNode, 0); + if (!options) + options = {}; + const compare = options.compare || eqeq; + const get = options.node || identity; + const before = options.before == null ? null : get(options.before, 0); let currentStart = 0, futureStart = 0; let currentEnd = currentNodes.length - 1; let currentStartNode = currentNodes[0]; @@ -49,15 +56,15 @@ const domdiff = ( else if (futureEndNode == null) { futureEndNode = futureNodes[--futureEnd]; } - else if (currentStartNode == futureStartNode) { + else if 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* @credits https://github.com/snabbdom/snabbdom */   +const eqeq = (a, b) => a == b; +  const identity = O => O;   const remove = (get, parentNode, before, after) => { @@ -377,11 +393,16 @@

parentNode, // where changes happen currentNodes, // Array of current items/nodes futureNodes, // Array of future items/nodes - getNode, // optional way to retrieve a node from an item - beforeNode // optional item/node to use as insertBefore delimiter + options // optional object with one of the following properties + // before: domNode + // compare(generic, generic) => true if same generic + // node(generic) => Node ) => { - const get = getNode || identity; - const before = beforeNode == null ? null : get(beforeNode, 0); + if (!options) + options = {}; + const compare = options.compare || eqeq; + const get = options.node || identity; + const before = options.before == null ? null : get(options.before, 0); let currentStart = 0, futureStart = 0; let currentEnd = currentNodes.length - 1; let currentStartNode = currentNodes[0]; @@ -402,15 +423,15 @@

else if (futureEndNode == null) { futureEndNode = futureNodes[--futureEnd]; } - else if (currentStartNode == futureStartNode) { + else if (compare(currentStartNode, futureStartNode)) { currentStartNode = currentNodes[++currentStart]; futureStartNode = futureNodes[++futureStart]; } - else if (currentEndNode == futureEndNode) { + else if (compare(currentEndNode, futureEndNode)) { currentEndNode = currentNodes[--currentEnd]; futureEndNode = futureNodes[--futureEnd]; } - else if (currentStartNode == futureEndNode) { + else if (compare(currentStartNode, futureEndNode)) { parentNode.insertBefore( get(currentStartNode, 1), get(currentEndNode, -0).nextSibling @@ -418,7 +439,7 @@

currentStartNode = currentNodes[++currentStart]; futureEndNode = futureNodes[--futureEnd]; } - else if (currentEndNode == futureStartNode) { + else if (compare(currentEndNode, futureStartNode)) { parentNode.insertBefore( get(currentEndNode, 1), get(currentStartNode, 0) @@ -511,7 +532,7 @@

Code coverage - generated by istanbul at Mon Jun 18 2018 16:44:14 GMT+0200 (CEST) + generated by istanbul at Sun Jun 24 2018 15:17:09 GMT+0200 (CEST)
diff --git a/coverage/lcov-report/index.html b/coverage/lcov-report/index.html index 41ab133..08653c1 100644 --- a/coverage/lcov-report/index.html +++ b/coverage/lcov-report/index.html @@ -22,12 +22,12 @@

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Code coverage - generated by istanbul at Mon Jun 18 2018 16:44:14 GMT+0200 (CEST) + generated by istanbul at Sun Jun 24 2018 15:17:09 GMT+0200 (CEST)
diff --git a/coverage/lcov.info b/coverage/lcov.info index 114f9a9..767c4c4 100644 --- a/coverage/lcov.info +++ b/coverage/lcov.info @@ -2,134 +2,142 @@ TN: SF:/Users/agiammarchi/git/domdiff/cjs/index.js FNF:0 FNH:0 -DA:10,531 -DA:12,1 -DA:13,25 +DA:10,847 +DA:12,531 DA:14,1 -DA:16,24 -DA:17,24 +DA:15,25 +DA:16,1 DA:18,24 DA:19,24 -DA:23,1 -DA:30,107 -DA:31,107 -DA:32,107 -DA:33,107 +DA:20,24 +DA:21,24 +DA:25,1 DA:34,107 -DA:35,107 +DA:35,54 DA:36,107 DA:37,107 DA:38,107 DA:39,107 -DA:40,424 -DA:41,38 -DA:43,386 -DA:44,3 -DA:46,383 -DA:47,22 -DA:49,361 -DA:50,5 -DA:52,356 -DA:53,135 -DA:54,135 -DA:56,221 -DA:57,52 -DA:58,52 -DA:60,169 -DA:61,55 -DA:65,55 -DA:66,55 -DA:68,114 -DA:69,21 -DA:73,21 -DA:74,21 -DA:77,93 -DA:78,93 -DA:79,55 -DA:83,55 -DA:86,38 -DA:87,38 -DA:88,38 -DA:93,58 -DA:94,58 -DA:96,38 -DA:97,13 -DA:98,11 -DA:100,2 -DA:107,13 -DA:108,13 -DA:109,13 -DA:110,13 -DA:112,25 -DA:113,25 -DA:114,25 -DA:115,25 -DA:120,107 -DA:121,86 -DA:122,36 -DA:123,36 -DA:124,36 -DA:125,13 -DA:128,23 -DA:129,23 -DA:130,66 -DA:132,23 -DA:136,50 -DA:137,2 -DA:138,50 -DA:139,27 -DA:142,23 -DA:151,107 -DA:154,1 -LF:79 -LH:79 -BRDA:13,1,0,1 -BRDA:13,1,1,24 -BRDA:30,2,0,107 -BRDA:30,2,1,105 -BRDA:31,3,0,56 -BRDA:31,3,1,51 -BRDA:39,4,0,531 -BRDA:39,4,1,474 -BRDA:40,5,0,38 -BRDA:40,5,1,386 -BRDA:43,6,0,3 -BRDA:43,6,1,383 -BRDA:46,7,0,22 -BRDA:46,7,1,361 -BRDA:49,8,0,5 -BRDA:49,8,1,356 -BRDA:52,9,0,135 -BRDA:52,9,1,221 -BRDA:56,10,0,52 -BRDA:56,10,1,169 -BRDA:60,11,0,55 -BRDA:60,11,1,114 -BRDA:68,12,0,21 -BRDA:68,12,1,93 -BRDA:78,13,0,55 -BRDA:78,13,1,38 -BRDA:89,14,0,96 -BRDA:89,14,1,88 -BRDA:89,14,2,85 -BRDA:96,15,0,13 -BRDA:96,15,1,25 -BRDA:97,16,0,11 -BRDA:97,16,1,2 -BRDA:120,17,0,86 -BRDA:120,17,1,21 -BRDA:120,18,0,107 -BRDA:120,18,1,57 -BRDA:121,19,0,36 -BRDA:121,19,1,50 -BRDA:123,20,0,27 -BRDA:123,20,1,9 -BRDA:124,21,0,13 -BRDA:124,21,1,23 -BRDA:136,22,0,2 -BRDA:136,22,1,48 -BRDA:138,23,0,27 -BRDA:138,23,1,23 -BRF:47 -BRH:47 +DA:40,107 +DA:41,107 +DA:42,107 +DA:43,107 +DA:44,107 +DA:45,107 +DA:46,107 +DA:47,424 +DA:48,38 +DA:50,386 +DA:51,3 +DA:53,383 +DA:54,22 +DA:56,361 +DA:57,5 +DA:59,356 +DA:60,135 +DA:61,135 +DA:63,221 +DA:64,52 +DA:65,52 +DA:67,169 +DA:68,55 +DA:72,55 +DA:73,55 +DA:75,114 +DA:76,21 +DA:80,21 +DA:81,21 +DA:84,93 +DA:85,93 +DA:86,55 +DA:90,55 +DA:93,38 +DA:94,38 +DA:95,38 +DA:100,58 +DA:101,58 +DA:103,38 +DA:104,13 +DA:105,11 +DA:107,2 +DA:114,13 +DA:115,13 +DA:116,13 +DA:117,13 +DA:119,25 +DA:120,25 +DA:121,25 +DA:122,25 +DA:127,107 +DA:128,86 +DA:129,36 +DA:130,36 +DA:131,36 +DA:132,13 +DA:135,23 +DA:136,23 +DA:137,66 +DA:139,23 +DA:143,50 +DA:144,2 +DA:145,50 +DA:146,27 +DA:149,23 +DA:158,107 +DA:161,1 +LF:83 +LH:83 +BRDA:15,1,0,1 +BRDA:15,1,1,24 +BRDA:34,2,0,54 +BRDA:34,2,1,53 +BRDA:36,3,0,107 +BRDA:36,3,1,106 +BRDA:37,4,0,107 +BRDA:37,4,1,105 +BRDA:38,5,0,56 +BRDA:38,5,1,51 +BRDA:46,6,0,531 +BRDA:46,6,1,474 +BRDA:47,7,0,38 +BRDA:47,7,1,386 +BRDA:50,8,0,3 +BRDA:50,8,1,383 +BRDA:53,9,0,22 +BRDA:53,9,1,361 +BRDA:56,10,0,5 +BRDA:56,10,1,356 +BRDA:59,11,0,135 +BRDA:59,11,1,221 +BRDA:63,12,0,52 +BRDA:63,12,1,169 +BRDA:67,13,0,55 +BRDA:67,13,1,114 +BRDA:75,14,0,21 +BRDA:75,14,1,93 +BRDA:85,15,0,55 +BRDA:85,15,1,38 +BRDA:96,16,0,96 +BRDA:96,16,1,88 +BRDA:96,16,2,85 +BRDA:103,17,0,13 +BRDA:103,17,1,25 +BRDA:104,18,0,11 +BRDA:104,18,1,2 +BRDA:127,19,0,86 +BRDA:127,19,1,21 +BRDA:127,20,0,107 +BRDA:127,20,1,57 +BRDA:128,21,0,36 +BRDA:128,21,1,50 +BRDA:130,22,0,27 +BRDA:130,22,1,9 +BRDA:131,23,0,13 +BRDA:131,23,1,23 +BRDA:143,24,0,2 +BRDA:143,24,1,48 +BRDA:145,25,0,27 +BRDA:145,25,1,23 +BRF:51 +BRH:51 end_of_record diff --git a/esm/index.js b/esm/index.js index c4b9f6e..6c221b6 100644 --- a/esm/index.js +++ b/esm/index.js @@ -6,6 +6,8 @@ * @credits https://github.com/snabbdom/snabbdom */ +const eqeq = (a, b) => a == b; + const identity = O => O; const remove = (get, parentNode, before, after) => { @@ -23,11 +25,16 @@ const domdiff = ( parentNode, // where changes happen currentNodes, // Array of current items/nodes futureNodes, // Array of future items/nodes - getNode, // optional way to retrieve a node from an item - beforeNode // optional item/node to use as insertBefore delimiter + options // optional object with one of the following properties + // before: domNode + // compare(generic, generic) => true if same generic + // node(generic) => Node ) => { - const get = getNode || identity; - const before = beforeNode == null ? null : get(beforeNode, 0); + if (!options) + options = {}; + const compare = options.compare || eqeq; + const get = options.node || identity; + const before = options.before == null ? null : get(options.before, 0); let currentStart = 0, futureStart = 0; let currentEnd = currentNodes.length - 1; let currentStartNode = currentNodes[0]; @@ -48,15 +55,15 @@ const domdiff = ( else if (futureEndNode == null) { futureEndNode = futureNodes[--futureEnd]; } - else if (currentStartNode == futureStartNode) { + else if (compare(currentStartNode, futureStartNode)) { currentStartNode = currentNodes[++currentStart]; futureStartNode = futureNodes[++futureStart]; } - else if (currentEndNode == futureEndNode) { + else if (compare(currentEndNode, futureEndNode)) { currentEndNode = currentNodes[--currentEnd]; futureEndNode = futureNodes[--futureEnd]; } - else if (currentStartNode == futureEndNode) { + else if (compare(currentStartNode, futureEndNode)) { parentNode.insertBefore( get(currentStartNode, 1), get(currentEndNode, -0).nextSibling @@ -64,7 +71,7 @@ const domdiff = ( currentStartNode = currentNodes[++currentStart]; futureEndNode = futureNodes[--futureEnd]; } - else if (currentEndNode == futureStartNode) { + else if (compare(currentEndNode, futureStartNode)) { parentNode.insertBefore( get(currentEndNode, 1), get(currentStartNode, 0) diff --git a/index.js b/index.js index e876d6b..1ef2874 100644 --- a/index.js +++ b/index.js @@ -9,6 +9,10 @@ var domdiff = (function () { * @credits https://github.com/snabbdom/snabbdom */ +var eqeq = function eqeq(a, b) { + return a == b; +}; + var identity = function identity(O) { return O; }; @@ -27,11 +31,15 @@ var remove = function remove(get, parentNode, before, after) { var domdiff = function domdiff(parentNode, // where changes happen currentNodes, // Array of current items/nodes futureNodes, // Array of future items/nodes -getNode, // optional way to retrieve a node from an item -beforeNode // optional item/node to use as insertBefore delimiter +options // optional object with one of the following properties +// before: domNode +// compare(generic, generic) => true if same generic +// node(generic) => Node ) { - var get = getNode || identity; - var before = beforeNode == null ? null : get(beforeNode, 0); + if (!options) options = {}; + var compare = options.compare || eqeq; + var get = options.node || identity; + var before = options.before == null ? null : get(options.before, 0); var currentStart = 0, futureStart = 0; var currentEnd = currentNodes.length - 1; @@ -49,17 +57,17 @@ beforeNode // optional item/node to use as insertBefore delimiter futureStartNode = futureNodes[++futureStart]; } else if (futureEndNode == null) { futureEndNode = futureNodes[--futureEnd]; - } else if (currentStartNode == futureStartNode) { + } else if (compare(currentStartNode, futureStartNode)) { currentStartNode = currentNodes[++currentStart]; futureStartNode = futureNodes[++futureStart]; - } else if (currentEndNode == futureEndNode) { + } else if (compare(currentEndNode, futureEndNode)) { currentEndNode = currentNodes[--currentEnd]; futureEndNode = futureNodes[--futureEnd]; - } else if (currentStartNode == futureEndNode) { + } else if (compare(currentStartNode, futureEndNode)) { parentNode.insertBefore(get(currentStartNode, 1), get(currentEndNode, -0).nextSibling); currentStartNode = currentNodes[++currentStart]; futureEndNode = futureNodes[--futureEnd]; - } else if (currentEndNode == futureStartNode) { + } else if (compare(currentEndNode, futureStartNode)) { parentNode.insertBefore(get(currentEndNode, 1), get(currentStartNode, 0)); currentEndNode = currentNodes[--currentEnd]; futureStartNode = futureNodes[++futureStart]; diff --git a/min.js b/min.js index 3018816..ad17564 100644 --- a/min.js +++ b/min.js @@ -1,2 +1,2 @@ var domdiff=function(){"use strict";/*! (c) 2017 Andrea Giammarchi (ISC) */ -var e=function(e){return e},n=function(e,n,r,l){if(null==l)n.removeChild(e(r,-1));else{var i=n.ownerDocument.createRange();i.setStartBefore(e(r,-1)),i.setEndAfter(e(l,-1)),i.deleteContents()}};return function(r,l,i,f,t){for(var o=f||e,s=null==t?null:o(t,0),u=0,a=0,v=l.length-1,c=l[0],d=l[v],m=i.length-1,B=i[0],h=i[m];u<=v&&a<=m;)if(null==c)c=l[++u];else if(null==d)d=l[--v];else if(null==B)B=i[++a];else if(null==h)h=i[--m];else if(c==B)c=l[++u],B=i[++a];else if(d==h)d=l[--v],h=i[--m];else if(c==h)r.insertBefore(o(c,1),o(d,-0).nextSibling),c=l[++u],h=i[--m];else if(d==B)r.insertBefore(o(d,1),o(c,0)),d=l[--v],B=i[++a];else{var g=l.indexOf(B);if(g<0)r.insertBefore(o(B,1),o(c,0)),B=i[++a];else{for(var C=g,D=a;C<=v&&D<=m&&l[C]===i[D];)C++,D++;if(1v){var w=i[m+1],x=null==w?s:o(w,0);if(a===m)r.insertBefore(o(i[a],1),x);else{for(var S=r.ownerDocument.createDocumentFragment();a<=m;)S.appendChild(o(i[a++],1));r.insertBefore(S,x)}}else null==l[u]&&u++,u===v?r.removeChild(o(l[u],-1)):n(o,r,l[u],l[v]);return i}}(); \ No newline at end of file +var e=function(e,n){return e==n},n=function(e){return e},r=function(e,n,r,l){if(null==l)n.removeChild(e(r,-1));else{var f=n.ownerDocument.createRange();f.setStartBefore(e(r,-1)),f.setEndAfter(e(l,-1)),f.deleteContents()}};return function(l,f,i,t){t||(t={});for(var o=t.compare||e,s=t.node||n,u=null==t.before?null:s(t.before,0),a=0,c=0,v=f.length-1,d=f[0],m=f[v],B=i.length-1,h=i[0],g=i[B];a<=v&&c<=B;)if(null==d)d=f[++a];else if(null==m)m=f[--v];else if(null==h)h=i[++c];else if(null==g)g=i[--B];else if(o(d,h))d=f[++a],h=i[++c];else if(o(m,g))m=f[--v],g=i[--B];else if(o(d,g))l.insertBefore(s(d,1),s(m,-0).nextSibling),d=f[++a],g=i[--B];else if(o(m,h))l.insertBefore(s(m,1),s(d,0)),m=f[--v],h=i[++c];else{var C=f.indexOf(h);if(C<0)l.insertBefore(s(h,1),s(d,0)),h=i[++c];else{for(var b=C,p=c;b<=v&&p<=B&&f[b]===i[p];)b++,p++;if(1v){var w=i[B+1],x=null==w?u:s(w,0);if(c===B)l.insertBefore(s(i[c],1),x);else{for(var S=l.ownerDocument.createDocumentFragment();c<=B;)S.appendChild(s(i[c++],1));l.insertBefore(S,x)}}else null==f[a]&&a++,a===v?l.removeChild(s(f[a],-1)):r(s,l,f[a],f[v]);return i}}(); \ No newline at end of file diff --git a/test/test.js b/test/test.js index 4e6563e..d890f5c 100644 --- a/test/test.js +++ b/test/test.js @@ -107,7 +107,7 @@ newState = domdiff( nodes.g, nodes.h, nodes.i, nodes.j, nodes.k ], - Object + {node: Object, compare: (a, b) => a === b} ); compare(newState, 'abcdefghijk'); @@ -117,7 +117,7 @@ newState = domdiff( [ nodes.g, nodes.h, nodes.i ], - Object + {node: Object} ); compare(newState, 'ghi'); @@ -135,8 +135,7 @@ newState = domdiff( [ nodes.c, nodes.d, nodes.e ], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'cde'); @@ -146,8 +145,7 @@ newState = domdiff( [ null, nodes.c, nodes.d, nodes.e, null ], - null, - nodes.k + {before: nodes.k} ); compare(newState.filter(notNull), 'cde'); @@ -157,8 +155,7 @@ newState = domdiff( [ nodes.a, nodes.c, null, nodes.e, nodes.f ], - null, - nodes.k + {before: nodes.k} ); compare(newState.filter(notNull), 'acef'); @@ -170,8 +167,7 @@ newState = domdiff( nodes.c, nodes.d, nodes.e, nodes.g, nodes.h, nodes.i ], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'cdeghi'); @@ -183,8 +179,7 @@ newState = domdiff( nodes.d, nodes.e, nodes.f, nodes.g, nodes.h, nodes.i ], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'abcdefghi'); @@ -196,8 +191,7 @@ newState = domdiff( nodes.d, nodes.e, nodes.f, nodes.g, nodes.i, nodes.h ], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'bacdefgih'); @@ -205,8 +199,7 @@ newState = domdiff( document.body, newState, [], - null, - nodes.k + {before: nodes.k} ); compare(newState, ''); @@ -216,8 +209,7 @@ newState = domdiff( document.body, newState, [nodes.a], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'a'); @@ -225,8 +217,7 @@ newState = domdiff( document.body, newState, [nodes.a, nodes.b, nodes.c], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'abc'); @@ -234,8 +225,7 @@ newState = domdiff( document.body, newState, [nodes.d, nodes.e], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'de'); @@ -243,8 +233,7 @@ newState = domdiff( document.body, newState, [nodes.a, nodes.b, nodes.c, nodes.d, nodes.e], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'abcde'); @@ -252,8 +241,7 @@ newState = domdiff( document.body, newState, [nodes.a, nodes.b, nodes.d, nodes.e], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'abde'); @@ -261,8 +249,7 @@ newState = domdiff( document.body, newState, [nodes.a, nodes.b, nodes.c, nodes.d, nodes.e], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'abcde'); @@ -270,8 +257,7 @@ newState = domdiff( document.body, newState, [nodes.b, nodes.c, nodes.d], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'bcd'); @@ -279,8 +265,7 @@ newState = domdiff( document.body, newState, [nodes.a, nodes.b, nodes.c, nodes.d, nodes.e], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'abcde'); @@ -288,8 +273,7 @@ newState = domdiff( document.body, newState, [], - null, - nodes.k + {before: nodes.k} ); compare(newState, ''); @@ -297,8 +281,7 @@ newState = domdiff( document.body, newState, [nodes.a, nodes.b, nodes.c], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'abc'); @@ -306,8 +289,7 @@ newState = domdiff( document.body, newState, [nodes.a, document.createTextNode('b'), nodes.c], - null, - nodes.k + {before: nodes.k} ); assert( newState[1] !== nodes.b && @@ -323,8 +305,7 @@ newState = domdiff( document.body, newState, [nodes.a, nodes.b, nodes.c, nodes.d, nodes.e], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'abcde'); @@ -332,8 +313,7 @@ newState = domdiff( document.body, newState, [nodes.c, nodes.d, nodes.e], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'cde'); @@ -341,8 +321,7 @@ newState = domdiff( document.body, newState, [nodes.a, nodes.b, nodes.c, nodes.d, nodes.e], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'abcde'); @@ -350,8 +329,7 @@ newState = domdiff( document.body, newState, [nodes.a, nodes.b, nodes.c], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'abc'); @@ -359,8 +337,7 @@ newState = domdiff( document.body, newState, [nodes.a, nodes.b, nodes.c, nodes.d, nodes.e], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'abcde'); @@ -368,8 +345,7 @@ newState = domdiff( document.body, newState, [nodes.a, nodes.b, nodes.d, nodes.e], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'abde'); @@ -379,8 +355,7 @@ newState = domdiff( document.body, newState, [nodes.a, nodes.b, nodes.c, nodes.d], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'abcd'); @@ -388,8 +363,7 @@ newState = domdiff( document.body, newState, [nodes.b, nodes.c, nodes.a, nodes.d], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'bcad'); @@ -397,8 +371,7 @@ newState = domdiff( document.body, newState, [nodes.a, nodes.b, nodes.c], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'abc'); @@ -406,8 +379,7 @@ newState = domdiff( document.body, newState, [nodes.b, nodes.c, nodes.a, nodes.d], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'bcad'); @@ -415,8 +387,7 @@ newState = domdiff( document.body, newState, [nodes.c, nodes.b, nodes.d], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'cbd'); @@ -424,8 +395,7 @@ newState = domdiff( document.body, newState, [nodes.a, nodes.b, nodes.c], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'abc'); @@ -433,8 +403,7 @@ newState = domdiff( document.body, newState, [nodes.b, nodes.c, nodes.a], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'bca'); @@ -442,8 +411,7 @@ newState = domdiff( document.body, newState, [nodes.a, nodes.b, nodes.c, nodes.d], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'abcd'); @@ -451,8 +419,7 @@ newState = domdiff( document.body, newState, [nodes.a, nodes.d, nodes.b, nodes.c], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'adbc'); @@ -460,8 +427,7 @@ newState = domdiff( document.body, newState, [nodes.a, nodes.d, nodes.b, nodes.c], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'adbc'); @@ -471,8 +437,7 @@ newState = domdiff( document.body, newState, [nodes.a, nodes.b, nodes.c, nodes.d, nodes.e], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'abcde'); @@ -480,8 +445,7 @@ newState = domdiff( document.body, newState, [nodes.d, nodes.a, nodes.b, nodes.c, nodes.f], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'dabcf'); @@ -489,8 +453,7 @@ newState = domdiff( document.body, newState, [nodes.a, nodes.d, nodes.e], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'ade'); @@ -498,8 +461,7 @@ newState = domdiff( document.body, newState, [nodes.d, nodes.f], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'df'); @@ -507,8 +469,7 @@ newState = domdiff( document.body, newState, [nodes.b, nodes.d, nodes.e], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'bde'); @@ -516,8 +477,7 @@ newState = domdiff( document.body, newState, [nodes.d, nodes.e, nodes.c], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'dec'); @@ -525,8 +485,7 @@ newState = domdiff( document.body, newState, [nodes.j, nodes.a, nodes.b, nodes.c], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'jabc'); @@ -534,8 +493,7 @@ newState = domdiff( document.body, newState, [nodes.d, nodes.a, nodes.b, nodes.c, nodes.j, nodes.e], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'dabcje'); @@ -543,8 +501,7 @@ newState = domdiff( document.body, newState, [nodes.a, nodes.b, nodes.c, nodes.d, nodes.e, nodes.f, nodes.g, nodes.h], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'abcdefgh'); @@ -552,8 +509,7 @@ newState = domdiff( document.body, newState, [nodes.a, nodes.b, nodes.c, nodes.d, nodes.e, nodes.f, nodes.g, nodes.h].reverse(), - null, - nodes.k + {before: nodes.k} ); compare(newState, 'hgfedcba'); @@ -561,8 +517,7 @@ newState = domdiff( document.body, newState, [nodes.a, nodes.b, nodes.c, nodes.d, nodes.e, nodes.f], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'abcdef'); @@ -570,8 +525,7 @@ newState = domdiff( document.body, newState, [nodes.e, nodes.d, nodes.c, nodes.b, nodes.f, nodes.a], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'edcbfa'); @@ -581,8 +535,7 @@ newState = domdiff( document.body, newState, [nodes.a, nodes.b, nodes.c, nodes.d, nodes.e, nodes.f], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'abcdef'); @@ -590,8 +543,7 @@ newState = domdiff( document.body, newState, [null, nodes.c, undefined, null, nodes.b, nodes.a, null, nodes.f, nodes.e, null, nodes.d, undefined], - null, - nodes.k + {before: nodes.k} ); compare(newState.filter(notNull), 'cbafed'); @@ -599,8 +551,7 @@ newState = domdiff( document.body, newState, [nodes.a, nodes.b, nodes.c, nodes.d, nodes.e, nodes.f], - null, - nodes.k + {before: nodes.k} ); compare(newState, 'abcdef'); @@ -608,8 +559,7 @@ newState = domdiff( document.body, newState, [null, null, undefined, null, null, undefined], - null, - nodes.k + {before: nodes.k} ); compare(newState.filter(notNull), ''); @@ -617,8 +567,7 @@ newState = domdiff( document.body, newState, [nodes.a, nodes.b, nodes.c, nodes.d, nodes.e, nodes.f].reverse(), - null, - nodes.k + {before: nodes.k} ); compare(newState, 'fedcba'); From dbf464dd70d06b6a68b05b3f760cbba1f78a0dd6 Mon Sep 17 00:00:00 2001 From: Andrea Giammarchi Date: Sun, 24 Jun 2018 15:21:17 +0200 Subject: [PATCH 33/71] 1.0.0 --- package.json | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/package.json b/package.json index a1362e4..ed797c6 100644 --- a/package.json +++ b/package.json @@ -1,6 +1,6 @@ { "name": "domdiff", - "version": "0.4.2", + "version": "1.0.0", "description": "A fast and simple way to diff childNodes", "browser": "min.js", "main": "cjs/index.js", From c9dbe9713ccd1f513a9a221b302fa0c02fd24a34 Mon Sep 17 00:00:00 2001 From: Andrea Giammarchi Date: Tue, 3 Jul 2018 19:18:02 +0200 Subject: [PATCH 34/71] =?UTF-8?q?using=20unpkg=20field=20=F0=9F=8E=89?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- package.json | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/package.json b/package.json index ed797c6..e7bc5dd 100644 --- a/package.json +++ b/package.json @@ -2,7 +2,7 @@ "name": "domdiff", "version": "1.0.0", "description": "A fast and simple way to diff childNodes", - "browser": "min.js", + "unpkg": "min.js", "main": "cjs/index.js", "module": "esm/index.js", "scripts": { From 545783beca1cabebb04c4ddf82e4786502bc37ca Mon Sep 17 00:00:00 2001 From: Andrea Giammarchi Date: Tue, 3 Jul 2018 19:18:02 +0200 Subject: [PATCH 35/71] 1.0.1 --- package.json | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/package.json b/package.json index e7bc5dd..779f195 100644 --- a/package.json +++ b/package.json @@ -1,6 +1,6 @@ { "name": "domdiff", - "version": "1.0.0", + "version": "1.0.1", "description": "A fast and simple way to diff childNodes", "unpkg": "min.js", "main": "cjs/index.js", From 13c05ea74ff46d02752ceace5a7f619f0e6989a3 Mon Sep 17 00:00:00 2001 From: Andrea Giammarchi Date: Tue, 11 Sep 2018 16:18:32 +0200 Subject: [PATCH 36/71] V2 - petit-dom(ish) like diffing --- README.md | 25 +- cjs/index.js | 331 +-- cjs/utils.js | 395 ++++ coverage/coverage.json | 2 +- coverage/lcov-report/cjs/index.html | 33 +- coverage/lcov-report/cjs/index.js.html | 619 ++++-- coverage/lcov-report/cjs/utils.js.html | 1254 +++++++++++ coverage/lcov-report/index.html | 22 +- coverage/lcov.info | 489 +++-- esm/.eslintrc | 2 +- esm/index.js | 333 +-- esm/utils.js | 386 ++++ index.js | 428 +++- min.js | 3 +- package-lock.json | 2700 ++++++++++++++++++++++++ package.json | 6 +- test/benchmark.html | 144 ++ test/index.html | 2 +- test/node.js | 1 + test/test.js | 293 ++- 20 files changed, 6719 insertions(+), 749 deletions(-) create mode 100644 cjs/utils.js create mode 100644 coverage/lcov-report/cjs/utils.js.html create mode 100644 esm/utils.js create mode 100644 package-lock.json create mode 100644 test/benchmark.html diff --git a/README.md b/README.md index 80d4a5d..5482acc 100644 --- a/README.md +++ b/README.md @@ -3,7 +3,30 @@ [![donate](https://img.shields.io/badge/$-donate-ff69b4.svg?maxAge=2592000&style=flat)](https://github.com/WebReflection/donate) [![Coverage Status](https://coveralls.io/repos/github/WebReflection/domdiff/badge.svg?branch=master)](https://coveralls.io/github/WebReflection/domdiff?branch=master) [![Build Status](https://travis-ci.org/WebReflection/domdiff.svg?branch=master)](https://travis-ci.org/WebReflection/domdiff) [![License: ISC](https://img.shields.io/badge/License-ISC-yellow.svg)](https://opensource.org/licenses/ISC) -A vDOM-less implementation of the [snabbdom](https://github.com/snabbdom/snabbdom) diffing logic. +A vDOM-less implementation of the [petit-dom](https://github.com/yelouafi/petit-dom) diffing logic. + + +### V2 breaking change + + * the good old snabdom diff logic has been 100% replaced + * lists with `null` or `undefined` nodes are not allowed anymore + +... but I guess having null nodes in the equation was quite possibly a bad idea in the first place ... + +#### V2 Diffing Strategies: + + * common prefixes + * common suffixes + * skip same lists + * add boundaries + * remove boundaries + * simple sub-sequences insertions and removals + * one to many and many to one replacements + * fast inverted list swap + * O(ND) algo with a limit of 50 attempts + * last fallback with a simplified Hunt Szymanski algorithm + +The current goal is to have in about 1K the best DOM diffing library out there. #### V1 breaking change diff --git a/cjs/index.js b/cjs/index.js index cb01ee8..59104be 100644 --- a/cjs/index.js +++ b/cjs/index.js @@ -1,26 +1,9 @@ 'use strict'; -/*! (c) 2017 Andrea Giammarchi (ISC) */ - -/** - * This code is a revisited port of the snabbdom vDOM diffing logic, - * the same that fuels as fork Vue.js or other libraries. - * @credits https://github.com/snabbdom/snabbdom - */ - -const eqeq = (a, b) => a == b; - -const identity = O => O; - -const remove = (get, parentNode, before, after) => { - if (after == null) { - parentNode.removeChild(get(before, -1)); - } else { - const range = parentNode.ownerDocument.createRange(); - range.setStartBefore(get(before, -1)); - range.setEndAfter(get(after, -1)); - range.deleteContents(); - } -}; +/*! (c) 2018 Andrea Giammarchi (ISC) */ + +const { + eqeq, identity, indexOf, isReversed, next, append, remove, smartDiff +} = require('./utils.js'); const domdiff = ( parentNode, // where changes happen @@ -33,128 +16,206 @@ const domdiff = ( ) => { if (!options) options = {}; + const compare = options.compare || eqeq; const get = options.node || identity; const before = options.before == null ? null : get(options.before, 0); - let currentStart = 0, futureStart = 0; - let currentEnd = currentNodes.length - 1; - let currentStartNode = currentNodes[0]; - let currentEndNode = currentNodes[currentEnd]; - let futureEnd = futureNodes.length - 1; - let futureStartNode = futureNodes[0]; - let futureEndNode = futureNodes[futureEnd]; - while (currentStart <= currentEnd && futureStart <= futureEnd) { - if (currentStartNode == null) { - currentStartNode = currentNodes[++currentStart]; - } - else if (currentEndNode == null) { - currentEndNode = currentNodes[--currentEnd]; - } - else if (futureStartNode == null) { - futureStartNode = futureNodes[++futureStart]; - } - else if (futureEndNode == null) { - futureEndNode = futureNodes[--futureEnd]; - } - else if (compare(currentStartNode, futureStartNode)) { - currentStartNode = currentNodes[++currentStart]; - futureStartNode = futureNodes[++futureStart]; - } - else if (compare(currentEndNode, futureEndNode)) { - currentEndNode = currentNodes[--currentEnd]; - futureEndNode = futureNodes[--futureEnd]; - } - else if (compare(currentStartNode, futureEndNode)) { - parentNode.insertBefore( - get(currentStartNode, 1), - get(currentEndNode, -0).nextSibling + + const currentLength = currentNodes.length; + let currentEnd = currentLength; + let currentStart = 0; + + let futureEnd = futureNodes.length; + let futureStart = 0; + + // common prefix + while ( + currentStart < currentEnd && + futureStart < futureEnd && + compare(currentNodes[currentStart], futureNodes[futureStart]) + ) { + currentStart++; + futureStart++; + } + + // common suffix + while ( + currentStart < currentEnd && + futureStart < futureEnd && + compare(currentNodes[currentEnd - 1], futureNodes[futureEnd - 1]) + ) { + currentEnd--; + futureEnd--; + } + + const currentSame = currentStart === currentEnd; + const futureSame = futureStart === futureEnd; + + // same list + if (currentSame && futureSame) + return futureNodes; + + // only stuff to add + if (currentSame && futureStart < futureEnd) { + append( + get, + parentNode, + futureNodes, + futureStart, + futureEnd, + next(get, currentNodes, currentStart, currentLength, before) + ); + return futureNodes; + } + + // only stuff to remove + if (futureSame && currentStart < currentEnd) { + remove( + get, + parentNode, + currentNodes, + currentStart, + currentEnd + ); + return futureNodes; + } + + const currentChanges = currentEnd - currentStart; + const futureChanges = futureEnd - futureStart; + let i = -1; + + // 2 simple indels: the shortest sequence is a subsequence of the longest + if (currentChanges < futureChanges) { + i = indexOf( + futureNodes, + futureStart, + futureEnd, + currentNodes, + currentStart, + currentEnd, + compare + ); + // inner diff + if (-1 < i) { + append( + get, + parentNode, + futureNodes, + futureStart, + i, + get(currentNodes[currentStart], 0) ); - currentStartNode = currentNodes[++currentStart]; - futureEndNode = futureNodes[--futureEnd]; - } - else if (compare(currentEndNode, futureStartNode)) { - parentNode.insertBefore( - get(currentEndNode, 1), - get(currentStartNode, 0) + append( + get, + parentNode, + futureNodes, + i + currentChanges, + futureEnd, + next(get, currentNodes, currentEnd, currentLength, before) ); - currentEndNode = currentNodes[--currentEnd]; - futureStartNode = futureNodes[++futureStart]; - } - else { - let index = currentNodes.indexOf(futureStartNode); - if (index < 0) { - parentNode.insertBefore( - get(futureStartNode, 1), - get(currentStartNode, 0) - ); - futureStartNode = futureNodes[++futureStart]; - } - else { - let i = index; - let f = futureStart; - while ( - i <= currentEnd && - f <= futureEnd && - currentNodes[i] === futureNodes[f] - ) { - i++; - f++; - } - if (1 < (i - index)) { - if (--index === currentStart) { - parentNode.removeChild(get(currentStartNode, -1)); - } else { - remove( - get, - parentNode, - currentStartNode, - currentNodes[index] - ); - } - currentStart = i; - futureStart = f; - currentStartNode = currentNodes[i]; - futureStartNode = futureNodes[f]; - } else { - const el = currentNodes[index]; - currentNodes[index] = null; - parentNode.insertBefore(get(el, 1), get(currentStartNode, 0)); - futureStartNode = futureNodes[++futureStart]; - } - } + return futureNodes; } } - if (currentStart <= currentEnd || futureStart <= futureEnd) { - if (currentStart > currentEnd) { - const pin = futureNodes[futureEnd + 1]; - const place = pin == null ? before : get(pin, 0); - if (futureStart === futureEnd) { - parentNode.insertBefore(get(futureNodes[futureStart], 1), place); - } - else { - const fragment = parentNode.ownerDocument.createDocumentFragment(); - while (futureStart <= futureEnd) { - fragment.appendChild(get(futureNodes[futureStart++], 1)); - } - parentNode.insertBefore(fragment, place); - } - } - else { - if (currentNodes[currentStart] == null) - currentStart++; - if (currentStart === currentEnd) { - parentNode.removeChild(get(currentNodes[currentStart], -1)); - } - else { - remove( - get, - parentNode, - currentNodes[currentStart], - currentNodes[currentEnd] - ); - } + /* istanbul ignore else */ + else if (futureChanges < currentChanges) { + i = indexOf( + currentNodes, + currentStart, + currentEnd, + futureNodes, + futureStart, + futureEnd, + compare + ); + // outer diff + if (-1 < i) { + remove( + get, + parentNode, + currentNodes, + currentStart, + i + ); + remove( + get, + parentNode, + currentNodes, + i + futureChanges, + currentEnd + ); + return futureNodes; } } + + // common case with one replacement for many nodes + // or many nodes replaced for a single one + /* istanbul ignore else */ + if ((currentChanges < 2 || futureChanges < 2)) { + append( + get, + parentNode, + futureNodes, + futureStart, + futureEnd, + get(currentNodes[currentStart], 0) + ); + remove( + get, + parentNode, + currentNodes, + currentStart, + currentEnd + ); + return futureNodes; + } + + // the half match diff part has been skipped in petit-dom + // https://github.com/yelouafi/petit-dom/blob/bd6f5c919b5ae5297be01612c524c40be45f14a7/src/vdom.js#L391-L397 + // accordingly, I think it's safe to skip in here too + // if one day it'll come out like the speediest thing ever to do + // then I might add it in here too + + // Extra: before going too fancy, what about reversed lists ? + // This should bail out pretty quickly if that's not the case. + if ( + currentChanges === futureChanges && + isReversed( + futureNodes, + futureEnd, + currentNodes, + currentStart, + currentEnd, + compare + ) + ) { + append( + get, + parentNode, + futureNodes, + futureStart, + futureEnd, + next(get, currentNodes, currentEnd, currentLength, before) + ); + return futureNodes; + } + + // last resort through a smart diff + smartDiff( + get, + parentNode, + futureNodes, + futureStart, + futureEnd, + futureChanges, + currentNodes, + currentStart, + currentEnd, + currentChanges, + currentLength, + compare, + before + ); + return futureNodes; }; diff --git a/cjs/utils.js b/cjs/utils.js new file mode 100644 index 0000000..b9f7cc4 --- /dev/null +++ b/cjs/utils.js @@ -0,0 +1,395 @@ +'use strict'; +const append = (get, parent, children, start, end, before) => { + if ((end - start) < 2) + parent.insertBefore(get(children[start], 1), before); + else { + const fragment = parent.ownerDocument.createDocumentFragment(); + while (start < end) + fragment.appendChild(get(children[start++], 1)); + parent.insertBefore(fragment, before); + } +}; +exports.append = append; + +const eqeq = (a, b) => a == b; +exports.eqeq = eqeq; + +const identity = O => O; +exports.identity = identity; + +const indexOf = ( + moreNodes, + moreStart, + moreEnd, + lessNodes, + lessStart, + lessEnd, + compare +) => { + const length = lessEnd - lessStart; + /* istanbul ignore if */ + if (length < 1) + return -1; + while ((moreEnd - moreStart) >= length) { + let m = moreStart; + let l = lessStart; + while ( + m < moreEnd && + l < lessEnd && + compare(moreNodes[m], lessNodes[l]) + ) { + m++; + l++; + } + if (l === lessEnd) + return moreStart; + moreStart = m + 1; + } + return -1; +}; +exports.indexOf = indexOf; + +const isReversed = ( + futureNodes, + futureEnd, + currentNodes, + currentStart, + currentEnd, + compare +) => { + while ( + currentStart < currentEnd && + compare( + currentNodes[currentStart], + futureNodes[futureEnd - 1] + )) { + currentStart++; + futureEnd--; + }; + return futureEnd === 0; +}; +exports.isReversed = isReversed; + +const next = (get, list, i, length, before) => i < length ? + get(list[i], 0) : + (0 < i ? + get(list[i - 1], -0).nextSibling : + before); +exports.next = next; + +const remove = (get, parent, children, start, end) => { + if ((end - start) < 2) + parent.removeChild(get(children[start], -1)); + else { + const range = parent.ownerDocument.createRange(); + range.setStartBefore(get(children[start], -1)); + range.setEndAfter(get(children[end - 1], -1)); + range.deleteContents(); + } +}; +exports.remove = remove; + +// - - - - - - - - - - - - - - - - - - - +// diff related constants and utilities +// - - - - - - - - - - - - - - - - - - - + +const DELETION = -1; +const INSERTION = 1; +const SKIP = 0; +const SKIP_OND = 50; + +/* istanbul ignore next */ +const Rel = typeof Map === 'undefined' ? + function () { + const k = [], v = []; + return { + has: value => -1 < k.indexOf(value), + get: value => v[k.indexOf(value)], + set: value => { + const i = k.indexOf(value); + v[i < 0 ? (k.push(value) - 1) : i] = value; + } + }; + } : + Map +; + +const HS = ( + futureNodes, + futureStart, + futureEnd, + futureChanges, + currentNodes, + currentStart, + currentEnd, + currentChanges +) => { + + let k = 0; + /* istanbul ignore next */ + let minLen = futureChanges < currentChanges ? futureChanges : currentChanges; + const link = Array(minLen++); + const tresh = Array(minLen); + tresh[0] = -1; + + for (let i = 1; i < minLen; i++) + tresh[i] = currentEnd; + + const keymap = new Rel; + for (let i = currentStart; i < currentEnd; i++) + keymap.set(currentNodes[i], i); + + for (let i = futureStart; i < futureEnd; i++) { + const idxInOld = keymap.get(futureNodes[i]); + if (idxInOld != null) { + k = findK(tresh, minLen, idxInOld); + /* istanbul ignore else */ + if (-1 < k) { + tresh[k] = idxInOld; + link[k] = { + newi: i, + oldi: idxInOld, + prev: link[k - 1] + }; + } + } + } + + k = --minLen; + --currentEnd; + while (tresh[k] > currentEnd) --k; + + minLen = currentChanges + futureChanges - k; + const diff = Array(minLen); + let ptr = link[k]; + --futureEnd; + while (ptr) { + const {newi, oldi} = ptr; + while (futureEnd > newi) { + diff[--minLen] = INSERTION; + --futureEnd; + } + while (currentEnd > oldi) { + diff[--minLen] = DELETION; + --currentEnd; + } + diff[--minLen] = SKIP; + --futureEnd; + --currentEnd; + ptr = ptr.prev; + } + while (futureEnd >= futureStart) { + diff[--minLen] = INSERTION; + --futureEnd; + } + while (currentEnd >= currentStart) { + diff[--minLen] = DELETION; + --currentEnd; + } + return diff; +}; + +// this is pretty much the same petit-dom code without the delete map part +// https://github.com/yelouafi/petit-dom/blob/bd6f5c919b5ae5297be01612c524c40be45f14a7/src/vdom.js#L556-L561 +const OND = ( + futureNodes, + futureStart, + rows, + currentNodes, + currentStart, + cols, + compare +) => { + const length = rows + cols; + const v = []; + let d, k, r, c, pv, cv, pd; + outer: for (d = 0; d <= length; d++) { + /* istanbul ignore if */ + if (d > SKIP_OND) + return null; + pd = d - 1; + /* istanbul ignore next */ + pv = d ? v[d - 1] : [0, 0]; + cv = v[d] = []; + for (k = -d; k <= d; k += 2) { + if (k === -d || (k !== d && pv[pd + k - 1] < pv[pd + k + 1])) { + c = pv[pd + k + 1]; + } else { + c = pv[pd + k - 1] + 1; + } + r = c - k; + while ( + c < cols && + r < rows && + compare( + currentNodes[currentStart + c], + futureNodes[futureStart + r] + ) + ) { + c++; + r++; + } + if (c === cols && r === rows) { + break outer; + } + cv[d + k] = c; + } + } + + const diff = Array(d / 2 + length / 2); + let diffIdx = diff.length - 1; + for (d = v.length - 1; d >= 0; d--) { + while ( + c > 0 && + r > 0 && + compare( + currentNodes[currentStart + c - 1], + futureNodes[futureStart + r - 1] + ) + ) { + // diagonal edge = equality + diff[diffIdx--] = SKIP; + c--; + r--; + } + if (!d) + break; + pd = d - 1; + /* istanbul ignore next */ + pv = d ? v[d - 1] : [0, 0]; + k = c - r; + if (k === -d || (k !== d && pv[pd + k - 1] < pv[pd + k + 1])) { + // vertical edge = insertion + r--; + diff[diffIdx--] = INSERTION; + } else { + // horizontal edge = deletion + c--; + diff[diffIdx--] = DELETION; + } + } + return diff; +}; + +const applyDiff = ( + diff, + get, + parentNode, + futureNodes, + futureStart, + currentNodes, + currentStart, + currentLength, + before +) => { + const live = new Rel; + const length = diff.length; + let currentIndex = currentStart; + let i = 0; + while (i < length) { + switch (diff[i++]) { + case SKIP: + futureStart++; + currentIndex++; + break; + case INSERTION: + // TODO: bulk appends for sequential nodes + live.set(futureNodes[futureStart], 1); + append( + get, + parentNode, + futureNodes, + futureStart++, + futureStart, + currentIndex < currentLength ? + get(currentNodes[currentIndex], 1) : + before + ); + break; + case DELETION: + currentIndex++; + break; + } + } + i = 0; + while (i < length) { + switch (diff[i++]) { + case SKIP: + currentStart++; + break; + case DELETION: + // TODO: bulk removes for sequential nodes + if (live.has(currentNodes[currentStart])) + currentStart++; + else + remove( + get, + parentNode, + currentNodes, + currentStart++, + currentStart + ); + break; + } + } +}; + +const findK = (ktr, length, j) => { + let lo = 1; + let hi = length; + while (lo < hi) { + var mid = ((lo + hi) / 2) >>> 0; + if (j < ktr[mid]) + hi = mid; + else + lo = mid + 1; + } + return lo; +} + +const smartDiff = ( + get, + parentNode, + futureNodes, + futureStart, + futureEnd, + futureChanges, + currentNodes, + currentStart, + currentEnd, + currentChanges, + currentLength, + compare, + before +) => { + applyDiff( + OND( + futureNodes, + futureStart, + futureChanges, + currentNodes, + currentStart, + currentChanges, + compare + ) || + HS( + futureNodes, + futureStart, + futureEnd, + futureChanges, + currentNodes, + currentStart, + currentEnd, + currentChanges + ), + get, + parentNode, + futureNodes, + futureStart, + currentNodes, + currentStart, + currentLength, + before + ); +}; +exports.smartDiff = smartDiff; diff --git a/coverage/coverage.json b/coverage/coverage.json index 1e95d18..d6fe3a3 100644 --- a/coverage/coverage.json +++ b/coverage/coverage.json @@ -1 +1 @@ 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'use strict';
-/*! (c) 2017 Andrea Giammarchi (ISC) */
+/*! (c) 2018 Andrea Giammarchi (ISC) */
  
-/**
- * This code is a revisited port of the snabbdom vDOM diffing logic,
- * the same that fuels as fork Vue.js or other libraries.
- * @credits https://github.com/snabbdom/snabbdom
- */
- 
-const eqeq = (a, b) => a == b;
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-const identity = O => O;
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-const remove = (get, parentNode, before, after) => {
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-    range.setStartBefore(get(before, -1));
-    range.setEndAfter(get(after, -1));
-    range.deleteContents();
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-};
+const {
+  eqeq, identity, indexOf, isReversed, next, append, remove, smartDiff
+} = require('./utils.js');
  
 const domdiff = (
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 ) => {
   if (!options)
     options = {};
+ 
   const compare = options.compare || eqeq;
   const get = options.node || identity;
   const before = options.before == null ? null : get(options.before, 0);
-  let currentStart = 0, futureStart = 0;
-  let currentEnd = currentNodes.length - 1;
-  let currentStartNode = currentNodes[0];
-  let currentEndNode = currentNodes[currentEnd];
-  let futureEnd = futureNodes.length - 1;
-  let futureStartNode = futureNodes[0];
-  let futureEndNode = futureNodes[futureEnd];
-  while (currentStart <= currentEnd && futureStart <= futureEnd) {
-    if (currentStartNode == null) {
-      currentStartNode = currentNodes[++currentStart];
-    }
-    else if (currentEndNode == null) {
-      currentEndNode = currentNodes[--currentEnd];
-    }
-    else if (futureStartNode == null) {
-      futureStartNode = futureNodes[++futureStart];
-    }
-    else if (futureEndNode == null) {
-      futureEndNode = futureNodes[--futureEnd];
-    }
-    else if (compare(currentStartNode, futureStartNode)) {
-      currentStartNode = currentNodes[++currentStart];
-      futureStartNode = futureNodes[++futureStart];
-    }
-    else if (compare(currentEndNode, futureEndNode)) {
-      currentEndNode = currentNodes[--currentEnd];
-      futureEndNode = futureNodes[--futureEnd];
-    }
-    else if (compare(currentStartNode, futureEndNode)) {
-      parentNode.insertBefore(
-        get(currentStartNode, 1),
-        get(currentEndNode, -0).nextSibling
+ 
+  const currentLength = currentNodes.length;
+  let currentEnd = currentLength;
+  let currentStart = 0;
+ 
+  let futureEnd = futureNodes.length;
+  let futureStart = 0;
+ 
+  // common prefix
+  while (
+    currentStart < currentEnd &&
+    futureStart < futureEnd &&
+    compare(currentNodes[currentStart], futureNodes[futureStart])
+  ) {
+    currentStart++;
+    futureStart++;
+  }
+ 
+  // common suffix
+  while (
+    currentStart < currentEnd &&
+    futureStart < futureEnd &&
+    compare(currentNodes[currentEnd - 1], futureNodes[futureEnd - 1])
+  ) {
+    currentEnd--;
+    futureEnd--;
+  }
+ 
+  const currentSame = currentStart === currentEnd;
+  const futureSame = futureStart === futureEnd;
+ 
+  // same list
+  if (currentSame && futureSame)
+    return futureNodes;
+ 
+  // only stuff to add
+  if (currentSame && futureStart < futureEnd) {
+    append(
+      get,
+      parentNode,
+      futureNodes,
+      futureStart,
+      futureEnd,
+      next(get, currentNodes, currentStart, currentLength, before)
+    );
+    return futureNodes;
+  }
+ 
+  // only stuff to remove
+  if (futureSame && currentStart < currentEnd) {
+    remove(
+      get,
+      parentNode,
+      currentNodes,
+      currentStart,
+      currentEnd
+    );
+    return futureNodes;
+  }
+ 
+  const currentChanges = currentEnd - currentStart;
+  const futureChanges = futureEnd - futureStart;
+  let i = -1;
+ 
+  // 2 simple indels: the shortest sequence is a subsequence of the longest
+  if (currentChanges < futureChanges) {
+    i = indexOf(
+      futureNodes,
+      futureStart,
+      futureEnd,
+      currentNodes,
+      currentStart,
+      currentEnd,
+      compare
+    );
+    // inner diff
+    if (-1 < i) {
+      append(
+        get,
+        parentNode,
+        futureNodes,
+        futureStart,
+        i,
+        get(currentNodes[currentStart], 0)
       );
-      currentStartNode = currentNodes[++currentStart];
-      futureEndNode = futureNodes[--futureEnd];
-    }
-    else if (compare(currentEndNode, futureStartNode)) {
-      parentNode.insertBefore(
-        get(currentEndNode, 1),
-        get(currentStartNode, 0)
+      append(
+        get,
+        parentNode,
+        futureNodes,
+        i + currentChanges,
+        futureEnd,
+        next(get, currentNodes, currentEnd, currentLength, before)
       );
-      currentEndNode = currentNodes[--currentEnd];
-      futureStartNode = futureNodes[++futureStart];
-    }
-    else {
-      let index = currentNodes.indexOf(futureStartNode);
-      if (index < 0) {
-        parentNode.insertBefore(
-          get(futureStartNode, 1),
-          get(currentStartNode, 0)
-        );
-        futureStartNode = futureNodes[++futureStart];
-      }
-      else {
-        let i = index;
-        let f = futureStart;
-        while (
-          i <= currentEnd &&
-          f <= futureEnd &&
-          currentNodes[i] === futureNodes[f]
-        ) {
-          i++;
-          f++;
-        }
-        if (1 < (i - index)) {
-          if (--index === currentStart) {
-            parentNode.removeChild(get(currentStartNode, -1));
-          } else {
-            remove(
-              get,
-              parentNode,
-              currentStartNode,
-              currentNodes[index]
-            );
-          }
-          currentStart = i;
-          futureStart = f;
-          currentStartNode = currentNodes[i];
-          futureStartNode = futureNodes[f];
-        } else {
-          const el = currentNodes[index];
-          currentNodes[index] = null;
-          parentNode.insertBefore(get(el, 1), get(currentStartNode, 0));
-          futureStartNode = futureNodes[++futureStart];
-        }
-      }
+      return futureNodes;
     }
   }
-  if (currentStart <= currentEnd || futureStart <= futureEnd) {
-    if (currentStart > currentEnd) {
-      const pin = futureNodes[futureEnd + 1];
-      const place = pin == null ? before : get(pin, 0);
-      if (futureStart === futureEnd) {
-        parentNode.insertBefore(get(futureNodes[futureStart], 1), place);
-      }
-      else {
-        const fragment = parentNode.ownerDocument.createDocumentFragment();
-        while (futureStart <= futureEnd) {
-          fragment.appendChild(get(futureNodes[futureStart++], 1));
-        }
-        parentNode.insertBefore(fragment, place);
-      }
-    }
-    else {
-      if (currentNodes[currentStart] == null)
-        currentStart++;
-      if (currentStart === currentEnd) {
-        parentNode.removeChild(get(currentNodes[currentStart], -1));
-      }
-      else {
-        remove(
-          get,
-          parentNode,
-          currentNodes[currentStart],
-          currentNodes[currentEnd]
-        );
-      }
+  /* istanbul ignore else */
+  else if (futureChanges < currentChanges) {
+    i = indexOf(
+      currentNodes,
+      currentStart,
+      currentEnd,
+      futureNodes,
+      futureStart,
+      futureEnd,
+      compare
+    );
+    // outer diff
+    if (-1 < i) {
+      remove(
+        get,
+        parentNode,
+        currentNodes,
+        currentStart,
+        i
+      );
+      remove(
+        get,
+        parentNode,
+        currentNodes,
+        i + futureChanges,
+        currentEnd
+      );
+      return futureNodes;
     }
   }
+ 
+  // common case with one replacement for many nodes
+  // or many nodes replaced for a single one
+  /* istanbul ignore else */
+  if ((currentChanges < 2 || futureChanges < 2)) {
+    append(
+      get,
+      parentNode,
+      futureNodes,
+      futureStart,
+      futureEnd,
+      get(currentNodes[currentStart], 0)
+    );
+    remove(
+      get,
+      parentNode,
+      currentNodes,
+      currentStart,
+      currentEnd
+    );
+    return futureNodes;
+  }
+ 
+  // the half match diff part has been skipped in petit-dom
+  // https://github.com/yelouafi/petit-dom/blob/bd6f5c919b5ae5297be01612c524c40be45f14a7/src/vdom.js#L391-L397
+  // accordingly, I think it's safe to skip in here too
+  // if one day it'll come out like the speediest thing ever to do
+  // then I might add it in here too
+ 
+  // Extra: before going too fancy, what about reversed lists ?
+  //        This should bail out pretty quickly if that's not the case.
+  if (
+    currentChanges === futureChanges &&
+    isReversed(
+      futureNodes,
+      futureEnd,
+      currentNodes,
+      currentStart,
+      currentEnd,
+      compare
+    )
+  ) {
+    append(
+      get,
+      parentNode,
+      futureNodes,
+      futureStart,
+      futureEnd,
+      next(get, currentNodes, currentEnd, currentLength, before)
+    );
+    return futureNodes;
+  }
+ 
+  // last resort through a smart diff
+  smartDiff(
+    get,
+    parentNode,
+    futureNodes,
+    futureStart,
+    futureEnd,
+    futureChanges,
+    currentNodes,
+    currentStart,
+    currentEnd,
+    currentChanges,
+    currentLength,
+    compare,
+    before
+  );
+ 
   return futureNodes;
 };
  
@@ -532,7 +715,7 @@ 

 
 

   Code coverage
-  generated by istanbul at Sun Jun 24 2018 15:17:09 GMT+0200 (CEST)
+  generated by istanbul at Thu Sep 13 2018 09:36:42 GMT+0200 (CEST)
 

 
 
diff --git a/coverage/lcov-report/cjs/utils.js.html b/coverage/lcov-report/cjs/utils.js.html
new file mode 100644
index 0000000..a82bece
--- /dev/null
+++ b/coverage/lcov-report/cjs/utils.js.html
@@ -0,0 +1,1254 @@
+
+
+
+    Code coverage report for cjs/utils.js
+    
+    
+    
+    
+    
+
+
+

+  

+    

+      all files / cjs/ utils.js
+    

+    

+      

+        100% 
+        Statements
+        178/178
+      

+      

+        100% 
+        Branches
+        68/68
+      

+      

+        100% 
+        Functions
+        1/1
+      

+      

+        100% 
+        Lines
+        173/173
+      

+      

+        7 statements, 1 function, 7 branches
+        Ignored      
+      

+    

+  

+  

+

+
+
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+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+1×
+ 
'use strict';
+const append = (get, parent, children, start, end, before) => {
+  if ((end - start) < 2)
+    parent.insertBefore(get(children[start], 1), before);
+  else {
+    const fragment = parent.ownerDocument.createDocumentFragment();
+    while (start < end)
+      fragment.appendChild(get(children[start++], 1));
+    parent.insertBefore(fragment, before);
+  }
+};
+exports.append = append;
+ 
+const eqeq = (a, b) => a == b;
+exports.eqeq = eqeq;
+ 
+const identity = O => O;
+exports.identity = identity;
+ 
+const indexOf = (
+  moreNodes,
+  moreStart,
+  moreEnd,
+  lessNodes,
+  lessStart,
+  lessEnd,
+  compare
+) => {
+  const length = lessEnd - lessStart;
+  /* istanbul ignore if */
+  Iif (length < 1)
+    return -1;
+  while ((moreEnd - moreStart) >= length) {
+    let m = moreStart;
+    let l = lessStart;
+    while (
+      m < moreEnd &&
+      l < lessEnd &&
+      compare(moreNodes[m], lessNodes[l])
+    ) {
+      m++;
+      l++;
+    }
+    if (l === lessEnd)
+      return moreStart;
+    moreStart = m + 1;
+  }
+  return -1;
+};
+exports.indexOf = indexOf;
+ 
+const isReversed = (
+  futureNodes,
+  futureEnd,
+  currentNodes,
+  currentStart,
+  currentEnd,
+  compare
+) => {
+  while (
+    currentStart < currentEnd &&
+    compare(
+      currentNodes[currentStart],
+      futureNodes[futureEnd - 1]
+    )) {
+      currentStart++;
+      futureEnd--;
+    };
+  return futureEnd === 0;
+};
+exports.isReversed = isReversed;
+ 
+const next = (get, list, i, length, before) => i < length ?
+              get(list[i], 0) :
+              (0 < i ?
+                get(list[i - 1], -0).nextSibling :
+                before);
+exports.next = next;
+ 
+const remove = (get, parent, children, start, end) => {
+  if ((end - start) < 2)
+    parent.removeChild(get(children[start], -1));
+  else {
+    const range = parent.ownerDocument.createRange();
+    range.setStartBefore(get(children[start], -1));
+    range.setEndAfter(get(children[end - 1], -1));
+    range.deleteContents();
+  }
+};
+exports.remove = remove;
+ 
+// - - - - - - - - - - - - - - - - - - -
+// diff related constants and utilities
+// - - - - - - - - - - - - - - - - - - -
+ 
+const DELETION = -1;
+const INSERTION = 1;
+const SKIP = 0;
+const SKIP_OND = 50;
+ 
+/* istanbul ignore next */
+const Rel = typeof Map === 'undefined' ?
+  function () {
+    const k = [], v = [];
+    return {
+      has: value => -1 < k.indexOf(value),
+      get: value => v[k.indexOf(value)],
+      set: value => {
+        const i = k.indexOf(value);
+        v[i < 0 ? (k.push(value) - 1) : i] = value;
+      }
+    };
+  } :
+  Map
+;
+ 
+const HS = (
+  futureNodes,
+  futureStart,
+  futureEnd,
+  futureChanges,
+  currentNodes,
+  currentStart,
+  currentEnd,
+  currentChanges
+) => {
+ 
+  let k = 0;
+  /* istanbul ignore next */
+  let minLen = futureChanges < currentChanges ? futureChanges : currentChanges;
+  const link = Array(minLen++);
+  const tresh = Array(minLen);
+  tresh[0] = -1;
+ 
+  for (let i = 1; i < minLen; i++)
+    tresh[i] = currentEnd;
+ 
+  const keymap = new Rel;
+  for (let i = currentStart; i < currentEnd; i++)
+    keymap.set(currentNodes[i], i);
+ 
+  for (let i = futureStart; i < futureEnd; i++) {
+    const idxInOld = keymap.get(futureNodes[i]);
+    if (idxInOld != null) {
+      k = findK(tresh, minLen, idxInOld);
+      /* istanbul ignore else */
+      Eif (-1 < k) {
+        tresh[k] = idxInOld;
+        link[k] = {
+          newi: i,
+          oldi: idxInOld,
+          prev: link[k - 1]
+        };
+      }
+    }
+  }
+ 
+  k = --minLen;
+  --currentEnd;
+  while (tresh[k] > currentEnd) --k;
+ 
+  minLen = currentChanges + futureChanges - k;
+  const diff = Array(minLen);
+  let ptr = link[k];
+  --futureEnd;
+  while (ptr) {
+    const {newi, oldi} = ptr;
+    while (futureEnd > newi) {
+      diff[--minLen] = INSERTION;
+      --futureEnd;
+    }
+    while (currentEnd > oldi) {
+      diff[--minLen] = DELETION;
+      --currentEnd;
+    }
+    diff[--minLen] = SKIP;
+    --futureEnd;
+    --currentEnd;
+    ptr = ptr.prev;
+  }
+  while (futureEnd >= futureStart) {
+    diff[--minLen] = INSERTION;
+    --futureEnd;
+  }
+  while (currentEnd >= currentStart) {
+    diff[--minLen] = DELETION;
+    --currentEnd;
+  }
+  return diff;
+};
+ 
+// this is pretty much the same petit-dom code without the delete map part
+// https://github.com/yelouafi/petit-dom/blob/bd6f5c919b5ae5297be01612c524c40be45f14a7/src/vdom.js#L556-L561
+const OND = (
+  futureNodes,
+  futureStart,
+  rows,
+  currentNodes,
+  currentStart,
+  cols,
+  compare
+) => {
+  const length = rows + cols;
+  const v = [];
+  let d, k, r, c, pv, cv, pd;
+  outer: for (d = 0; d <= length; d++) {
+    /* istanbul ignore if */
+    if (d > SKIP_OND)
+      return null;
+    pd = d - 1;
+    /* istanbul ignore next */
+    pv = d ? v[d - 1] : [0, 0];
+    cv = v[d] = [];
+    for (k = -d; k <= d; k += 2) {
+      if (k === -d || (k !== d && pv[pd + k - 1] < pv[pd + k + 1])) {
+        c = pv[pd + k + 1];
+      } else {
+        c = pv[pd + k - 1] + 1;
+      }
+      r = c - k;
+      while (
+        c < cols &&
+        r < rows &&
+        compare(
+          currentNodes[currentStart + c],
+          futureNodes[futureStart + r]
+        )
+      ) {
+        c++;
+        r++;
+      }
+      if (c === cols && r === rows) {
+        break outer;
+      }
+      cv[d + k] = c;
+    }
+  }
+ 
+  const diff = Array(d / 2 + length / 2);
+  let diffIdx = diff.length - 1;
+  for (d = v.length - 1; d >= 0; d--) {
+    while (
+      c > 0 &&
+      r > 0 &&
+      compare(
+        currentNodes[currentStart + c - 1],
+        futureNodes[futureStart + r - 1]
+      )
+    ) {
+      // diagonal edge = equality
+      diff[diffIdx--] = SKIP;
+      c--;
+      r--;
+    }
+    if (!d)
+      break;
+    pd = d - 1;
+    /* istanbul ignore next */
+    pv = d ? v[d - 1] : [0, 0];
+    k = c - r;
+    if (k === -d || (k !== d && pv[pd + k - 1] < pv[pd + k + 1])) {
+      // vertical edge = insertion
+      r--;
+      diff[diffIdx--] = INSERTION;
+    } else {
+      // horizontal edge = deletion
+      c--;
+      diff[diffIdx--] = DELETION;
+    }
+  }
+  return diff;
+};
+ 
+const applyDiff = (
+  diff,
+  get,
+  parentNode,
+  futureNodes,
+  futureStart,
+  currentNodes,
+  currentStart,
+  currentLength,
+  before
+) => {
+  const live = new Rel;
+  const length = diff.length;
+  let currentIndex = currentStart;
+  let i = 0;
+  while (i < length) {
+    switch (diff[i++]) {
+      case SKIP:
+        futureStart++;
+        currentIndex++;
+        break;
+      case INSERTION:
+        // TODO: bulk appends for sequential nodes
+        live.set(futureNodes[futureStart], 1);
+        append(
+          get,
+          parentNode,
+          futureNodes,
+          futureStart++,
+          futureStart,
+          currentIndex < currentLength ?
+            get(currentNodes[currentIndex], 1) :
+            before
+        );
+        break;
+      case DELETION:
+        currentIndex++;
+        break;
+    }
+  }
+  i = 0;
+  while (i < length) {
+    switch (diff[i++]) {
+      case SKIP:
+        currentStart++;
+        break;
+      case DELETION:
+        // TODO: bulk removes for sequential nodes
+        if (live.has(currentNodes[currentStart]))
+          currentStart++;
+        else
+          remove(
+            get,
+            parentNode,
+            currentNodes,
+            currentStart++,
+            currentStart
+          );
+        break;
+    }
+  }
+};
+ 
+const findK = (ktr, length, j) => {
+  let lo = 1;
+  let hi = length;
+  while (lo < hi) {
+    var mid = ((lo + hi) / 2) >>> 0;
+    if (j < ktr[mid])
+      hi = mid;
+    else
+      lo = mid + 1;
+  }
+  return lo;
+}
+ 
+const smartDiff = (
+  get,
+  parentNode,
+  futureNodes,
+  futureStart,
+  futureEnd,
+  futureChanges,
+  currentNodes,
+  currentStart,
+  currentEnd,
+  currentChanges,
+  currentLength,
+  compare,
+  before
+) => {
+  applyDiff(
+    OND(
+      futureNodes,
+      futureStart,
+      futureChanges,
+      currentNodes,
+      currentStart,
+      currentChanges,
+      compare
+    ) ||
+    HS(
+      futureNodes,
+      futureStart,
+      futureEnd,
+      futureChanges,
+      currentNodes,
+      currentStart,
+      currentEnd,
+      currentChanges
+    ),
+    get,
+    parentNode,
+    futureNodes,
+    futureStart,
+    currentNodes,
+    currentStart,
+    currentLength,
+    before
+  );
+};
+exports.smartDiff = smartDiff;
+ 

+

+

+

+  Code coverage
+  generated by istanbul at Thu Sep 13 2018 09:36:42 GMT+0200 (CEST)
+

+
+
+
+
+
+
diff --git a/coverage/lcov-report/index.html b/coverage/lcov-report/index.html
index 08653c1..a1ac4ec 100644
--- a/coverage/lcov-report/index.html
+++ b/coverage/lcov-report/index.html
@@ -22,22 +22,26 @@ 

       

         100% 
         Statements
-        85/85
+        231/231
       

       

         100% 
         Branches
-        51/51
+        110/110
       

       

         100% 
         Functions
-        0/0
+        1/1
       

       

         100% 
         Lines
-        83/83
+        226/226
+      

+      

+        7 statements, 1 function, 7 branches
+        Ignored      
       

     
   
@@ -62,13 +66,13 @@ 

 	cjs/
 	

 	100%
-	85/85
+	231/231
 	100%
-	51/51
+	110/110
 	100%
-	0/0
+	1/1
 	100%
-	83/83
+	226/226
 	
 
 
@@ -77,7 +81,7 @@ 

 
 

   Code coverage
-  generated by istanbul at Sun Jun 24 2018 15:17:09 GMT+0200 (CEST)
+  generated by istanbul at Thu Sep 13 2018 09:36:42 GMT+0200 (CEST)
 

 
 
diff --git a/coverage/lcov.info b/coverage/lcov.info
index 767c4c4..27d5b3e 100644
--- a/coverage/lcov.info
+++ b/coverage/lcov.info
@@ -2,142 +2,355 @@ TN:
 SF:/Users/agiammarchi/git/domdiff/cjs/index.js
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+BRF:42
+BRH:42
+end_of_record
+TN:
+SF:/Users/agiammarchi/git/domdiff/cjs/utils.js
+FN:103,(anonymous_1)
+FNF:1
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+BRF:68
+BRH:68
 end_of_record
diff --git a/esm/.eslintrc b/esm/.eslintrc
index 6284ba7..06410ca 100644
--- a/esm/.eslintrc
+++ b/esm/.eslintrc
@@ -1,5 +1,5 @@
 {
-  "extends": "eslint:recommended",
+  // "extends": "eslint:recommended",
   "globals": {
     "Promise": true
   },
diff --git a/esm/index.js b/esm/index.js
index 6c221b6..28e7719 100644
--- a/esm/index.js
+++ b/esm/index.js
@@ -1,25 +1,10 @@
-/*! (c) 2017 Andrea Giammarchi (ISC) */
-
-/**
- * This code is a revisited port of the snabbdom vDOM diffing logic,
- * the same that fuels as fork Vue.js or other libraries.
- * @credits https://github.com/snabbdom/snabbdom
- */
-
-const eqeq = (a, b) => a == b;
-
-const identity = O => O;
-
-const remove = (get, parentNode, before, after) => {
-  if (after == null) {
-    parentNode.removeChild(get(before, -1));
-  } else {
-    const range = parentNode.ownerDocument.createRange();
-    range.setStartBefore(get(before, -1));
-    range.setEndAfter(get(after, -1));
-    range.deleteContents();
-  }
-};
+/*! (c) 2018 Andrea Giammarchi (ISC) */
+
+import {
+  eqeq, identity, indexOf, isReversed, next,
+  append, remove,
+  smartDiff
+} from './utils.js';
 
 const domdiff = (
   parentNode,     // where changes happen
@@ -32,128 +17,206 @@ const domdiff = (
 ) => {
   if (!options)
     options = {};
+
   const compare = options.compare || eqeq;
   const get = options.node || identity;
   const before = options.before == null ? null : get(options.before, 0);
-  let currentStart = 0, futureStart = 0;
-  let currentEnd = currentNodes.length - 1;
-  let currentStartNode = currentNodes[0];
-  let currentEndNode = currentNodes[currentEnd];
-  let futureEnd = futureNodes.length - 1;
-  let futureStartNode = futureNodes[0];
-  let futureEndNode = futureNodes[futureEnd];
-  while (currentStart <= currentEnd && futureStart <= futureEnd) {
-    if (currentStartNode == null) {
-      currentStartNode = currentNodes[++currentStart];
-    }
-    else if (currentEndNode == null) {
-      currentEndNode = currentNodes[--currentEnd];
-    }
-    else if (futureStartNode == null) {
-      futureStartNode = futureNodes[++futureStart];
-    }
-    else if (futureEndNode == null) {
-      futureEndNode = futureNodes[--futureEnd];
-    }
-    else if (compare(currentStartNode, futureStartNode)) {
-      currentStartNode = currentNodes[++currentStart];
-      futureStartNode = futureNodes[++futureStart];
-    }
-    else if (compare(currentEndNode, futureEndNode)) {
-      currentEndNode = currentNodes[--currentEnd];
-      futureEndNode = futureNodes[--futureEnd];
-    }
-    else if (compare(currentStartNode, futureEndNode)) {
-      parentNode.insertBefore(
-        get(currentStartNode, 1),
-        get(currentEndNode, -0).nextSibling
+
+  const currentLength = currentNodes.length;
+  let currentEnd = currentLength;
+  let currentStart = 0;
+
+  let futureEnd = futureNodes.length;
+  let futureStart = 0;
+
+  // common prefix
+  while (
+    currentStart < currentEnd &&
+    futureStart < futureEnd &&
+    compare(currentNodes[currentStart], futureNodes[futureStart])
+  ) {
+    currentStart++;
+    futureStart++;
+  }
+
+  // common suffix
+  while (
+    currentStart < currentEnd &&
+    futureStart < futureEnd &&
+    compare(currentNodes[currentEnd - 1], futureNodes[futureEnd - 1])
+  ) {
+    currentEnd--;
+    futureEnd--;
+  }
+
+  const currentSame = currentStart === currentEnd;
+  const futureSame = futureStart === futureEnd;
+
+  // same list
+  if (currentSame && futureSame)
+    return futureNodes;
+
+  // only stuff to add
+  if (currentSame && futureStart < futureEnd) {
+    append(
+      get,
+      parentNode,
+      futureNodes,
+      futureStart,
+      futureEnd,
+      next(get, currentNodes, currentStart, currentLength, before)
+    );
+    return futureNodes;
+  }
+
+  // only stuff to remove
+  if (futureSame && currentStart < currentEnd) {
+    remove(
+      get,
+      parentNode,
+      currentNodes,
+      currentStart,
+      currentEnd
+    );
+    return futureNodes;
+  }
+
+  const currentChanges = currentEnd - currentStart;
+  const futureChanges = futureEnd - futureStart;
+  let i = -1;
+
+  // 2 simple indels: the shortest sequence is a subsequence of the longest
+  if (currentChanges < futureChanges) {
+    i = indexOf(
+      futureNodes,
+      futureStart,
+      futureEnd,
+      currentNodes,
+      currentStart,
+      currentEnd,
+      compare
+    );
+    // inner diff
+    if (-1 < i) {
+      append(
+        get,
+        parentNode,
+        futureNodes,
+        futureStart,
+        i,
+        get(currentNodes[currentStart], 0)
       );
-      currentStartNode = currentNodes[++currentStart];
-      futureEndNode = futureNodes[--futureEnd];
-    }
-    else if (compare(currentEndNode, futureStartNode)) {
-      parentNode.insertBefore(
-        get(currentEndNode, 1),
-        get(currentStartNode, 0)
+      append(
+        get,
+        parentNode,
+        futureNodes,
+        i + currentChanges,
+        futureEnd,
+        next(get, currentNodes, currentEnd, currentLength, before)
       );
-      currentEndNode = currentNodes[--currentEnd];
-      futureStartNode = futureNodes[++futureStart];
-    }
-    else {
-      let index = currentNodes.indexOf(futureStartNode);
-      if (index < 0) {
-        parentNode.insertBefore(
-          get(futureStartNode, 1),
-          get(currentStartNode, 0)
-        );
-        futureStartNode = futureNodes[++futureStart];
-      }
-      else {
-        let i = index;
-        let f = futureStart;
-        while (
-          i <= currentEnd &&
-          f <= futureEnd &&
-          currentNodes[i] === futureNodes[f]
-        ) {
-          i++;
-          f++;
-        }
-        if (1 < (i - index)) {
-          if (--index === currentStart) {
-            parentNode.removeChild(get(currentStartNode, -1));
-          } else {
-            remove(
-              get,
-              parentNode,
-              currentStartNode,
-              currentNodes[index]
-            );
-          }
-          currentStart = i;
-          futureStart = f;
-          currentStartNode = currentNodes[i];
-          futureStartNode = futureNodes[f];
-        } else {
-          const el = currentNodes[index];
-          currentNodes[index] = null;
-          parentNode.insertBefore(get(el, 1), get(currentStartNode, 0));
-          futureStartNode = futureNodes[++futureStart];
-        }
-      }
+      return futureNodes;
     }
   }
-  if (currentStart <= currentEnd || futureStart <= futureEnd) {
-    if (currentStart > currentEnd) {
-      const pin = futureNodes[futureEnd + 1];
-      const place = pin == null ? before : get(pin, 0);
-      if (futureStart === futureEnd) {
-        parentNode.insertBefore(get(futureNodes[futureStart], 1), place);
-      }
-      else {
-        const fragment = parentNode.ownerDocument.createDocumentFragment();
-        while (futureStart <= futureEnd) {
-          fragment.appendChild(get(futureNodes[futureStart++], 1));
-        }
-        parentNode.insertBefore(fragment, place);
-      }
-    }
-    else {
-      if (currentNodes[currentStart] == null)
-        currentStart++;
-      if (currentStart === currentEnd) {
-        parentNode.removeChild(get(currentNodes[currentStart], -1));
-      }
-      else {
-        remove(
-          get,
-          parentNode,
-          currentNodes[currentStart],
-          currentNodes[currentEnd]
-        );
-      }
+  /* istanbul ignore else */
+  else if (futureChanges < currentChanges) {
+    i = indexOf(
+      currentNodes,
+      currentStart,
+      currentEnd,
+      futureNodes,
+      futureStart,
+      futureEnd,
+      compare
+    );
+    // outer diff
+    if (-1 < i) {
+      remove(
+        get,
+        parentNode,
+        currentNodes,
+        currentStart,
+        i
+      );
+      remove(
+        get,
+        parentNode,
+        currentNodes,
+        i + futureChanges,
+        currentEnd
+      );
+      return futureNodes;
     }
   }
+
+  // common case with one replacement for many nodes
+  // or many nodes replaced for a single one
+  /* istanbul ignore else */
+  if ((currentChanges < 2 || futureChanges < 2)) {
+    append(
+      get,
+      parentNode,
+      futureNodes,
+      futureStart,
+      futureEnd,
+      get(currentNodes[currentStart], 0)
+    );
+    remove(
+      get,
+      parentNode,
+      currentNodes,
+      currentStart,
+      currentEnd
+    );
+    return futureNodes;
+  }
+
+  // the half match diff part has been skipped in petit-dom
+  // https://github.com/yelouafi/petit-dom/blob/bd6f5c919b5ae5297be01612c524c40be45f14a7/src/vdom.js#L391-L397
+  // accordingly, I think it's safe to skip in here too
+  // if one day it'll come out like the speediest thing ever to do
+  // then I might add it in here too
+
+  // Extra: before going too fancy, what about reversed lists ?
+  //        This should bail out pretty quickly if that's not the case.
+  if (
+    currentChanges === futureChanges &&
+    isReversed(
+      futureNodes,
+      futureEnd,
+      currentNodes,
+      currentStart,
+      currentEnd,
+      compare
+    )
+  ) {
+    append(
+      get,
+      parentNode,
+      futureNodes,
+      futureStart,
+      futureEnd,
+      next(get, currentNodes, currentEnd, currentLength, before)
+    );
+    return futureNodes;
+  }
+
+  // last resort through a smart diff
+  smartDiff(
+    get,
+    parentNode,
+    futureNodes,
+    futureStart,
+    futureEnd,
+    futureChanges,
+    currentNodes,
+    currentStart,
+    currentEnd,
+    currentChanges,
+    currentLength,
+    compare,
+    before
+  );
+
   return futureNodes;
 };
 
diff --git a/esm/utils.js b/esm/utils.js
new file mode 100644
index 0000000..f4f8494
--- /dev/null
+++ b/esm/utils.js
@@ -0,0 +1,386 @@
+export const append = (get, parent, children, start, end, before) => {
+  if ((end - start) < 2)
+    parent.insertBefore(get(children[start], 1), before);
+  else {
+    const fragment = parent.ownerDocument.createDocumentFragment();
+    while (start < end)
+      fragment.appendChild(get(children[start++], 1));
+    parent.insertBefore(fragment, before);
+  }
+};
+
+export const eqeq = (a, b) => a == b;
+
+export const identity = O => O;
+
+export const indexOf = (
+  moreNodes,
+  moreStart,
+  moreEnd,
+  lessNodes,
+  lessStart,
+  lessEnd,
+  compare
+) => {
+  const length = lessEnd - lessStart;
+  /* istanbul ignore if */
+  if (length < 1)
+    return -1;
+  while ((moreEnd - moreStart) >= length) {
+    let m = moreStart;
+    let l = lessStart;
+    while (
+      m < moreEnd &&
+      l < lessEnd &&
+      compare(moreNodes[m], lessNodes[l])
+    ) {
+      m++;
+      l++;
+    }
+    if (l === lessEnd)
+      return moreStart;
+    moreStart = m + 1;
+  }
+  return -1;
+};
+
+export const isReversed = (
+  futureNodes,
+  futureEnd,
+  currentNodes,
+  currentStart,
+  currentEnd,
+  compare
+) => {
+  while (
+    currentStart < currentEnd &&
+    compare(
+      currentNodes[currentStart],
+      futureNodes[futureEnd - 1]
+    )) {
+      currentStart++;
+      futureEnd--;
+    };
+  return futureEnd === 0;
+};
+
+export const next = (get, list, i, length, before) => i < length ?
+              get(list[i], 0) :
+              (0 < i ?
+                get(list[i - 1], -0).nextSibling :
+                before);
+
+export const remove = (get, parent, children, start, end) => {
+  if ((end - start) < 2)
+    parent.removeChild(get(children[start], -1));
+  else {
+    const range = parent.ownerDocument.createRange();
+    range.setStartBefore(get(children[start], -1));
+    range.setEndAfter(get(children[end - 1], -1));
+    range.deleteContents();
+  }
+};
+
+// - - - - - - - - - - - - - - - - - - -
+// diff related constants and utilities
+// - - - - - - - - - - - - - - - - - - -
+
+const DELETION = -1;
+const INSERTION = 1;
+const SKIP = 0;
+const SKIP_OND = 50;
+
+/* istanbul ignore next */
+const Rel = typeof Map === 'undefined' ?
+  function () {
+    const k = [], v = [];
+    return {
+      has: value => -1 < k.indexOf(value),
+      get: value => v[k.indexOf(value)],
+      set: value => {
+        const i = k.indexOf(value);
+        v[i < 0 ? (k.push(value) - 1) : i] = value;
+      }
+    };
+  } :
+  Map
+;
+
+const HS = (
+  futureNodes,
+  futureStart,
+  futureEnd,
+  futureChanges,
+  currentNodes,
+  currentStart,
+  currentEnd,
+  currentChanges
+) => {
+
+  let k = 0;
+  /* istanbul ignore next */
+  let minLen = futureChanges < currentChanges ? futureChanges : currentChanges;
+  const link = Array(minLen++);
+  const tresh = Array(minLen);
+  tresh[0] = -1;
+
+  for (let i = 1; i < minLen; i++)
+    tresh[i] = currentEnd;
+
+  const keymap = new Rel;
+  for (let i = currentStart; i < currentEnd; i++)
+    keymap.set(currentNodes[i], i);
+
+  for (let i = futureStart; i < futureEnd; i++) {
+    const idxInOld = keymap.get(futureNodes[i]);
+    if (idxInOld != null) {
+      k = findK(tresh, minLen, idxInOld);
+      /* istanbul ignore else */
+      if (-1 < k) {
+        tresh[k] = idxInOld;
+        link[k] = {
+          newi: i,
+          oldi: idxInOld,
+          prev: link[k - 1]
+        };
+      }
+    }
+  }
+
+  k = --minLen;
+  --currentEnd;
+  while (tresh[k] > currentEnd) --k;
+
+  minLen = currentChanges + futureChanges - k;
+  const diff = Array(minLen);
+  let ptr = link[k];
+  --futureEnd;
+  while (ptr) {
+    const {newi, oldi} = ptr;
+    while (futureEnd > newi) {
+      diff[--minLen] = INSERTION;
+      --futureEnd;
+    }
+    while (currentEnd > oldi) {
+      diff[--minLen] = DELETION;
+      --currentEnd;
+    }
+    diff[--minLen] = SKIP;
+    --futureEnd;
+    --currentEnd;
+    ptr = ptr.prev;
+  }
+  while (futureEnd >= futureStart) {
+    diff[--minLen] = INSERTION;
+    --futureEnd;
+  }
+  while (currentEnd >= currentStart) {
+    diff[--minLen] = DELETION;
+    --currentEnd;
+  }
+  return diff;
+};
+
+// this is pretty much the same petit-dom code without the delete map part
+// https://github.com/yelouafi/petit-dom/blob/bd6f5c919b5ae5297be01612c524c40be45f14a7/src/vdom.js#L556-L561
+const OND = (
+  futureNodes,
+  futureStart,
+  rows,
+  currentNodes,
+  currentStart,
+  cols,
+  compare
+) => {
+  const length = rows + cols;
+  const v = [];
+  let d, k, r, c, pv, cv, pd;
+  outer: for (d = 0; d <= length; d++) {
+    /* istanbul ignore if */
+    if (d > SKIP_OND)
+      return null;
+    pd = d - 1;
+    /* istanbul ignore next */
+    pv = d ? v[d - 1] : [0, 0];
+    cv = v[d] = [];
+    for (k = -d; k <= d; k += 2) {
+      if (k === -d || (k !== d && pv[pd + k - 1] < pv[pd + k + 1])) {
+        c = pv[pd + k + 1];
+      } else {
+        c = pv[pd + k - 1] + 1;
+      }
+      r = c - k;
+      while (
+        c < cols &&
+        r < rows &&
+        compare(
+          currentNodes[currentStart + c],
+          futureNodes[futureStart + r]
+        )
+      ) {
+        c++;
+        r++;
+      }
+      if (c === cols && r === rows) {
+        break outer;
+      }
+      cv[d + k] = c;
+    }
+  }
+
+  const diff = Array(d / 2 + length / 2);
+  let diffIdx = diff.length - 1;
+  for (d = v.length - 1; d >= 0; d--) {
+    while (
+      c > 0 &&
+      r > 0 &&
+      compare(
+        currentNodes[currentStart + c - 1],
+        futureNodes[futureStart + r - 1]
+      )
+    ) {
+      // diagonal edge = equality
+      diff[diffIdx--] = SKIP;
+      c--;
+      r--;
+    }
+    if (!d)
+      break;
+    pd = d - 1;
+    /* istanbul ignore next */
+    pv = d ? v[d - 1] : [0, 0];
+    k = c - r;
+    if (k === -d || (k !== d && pv[pd + k - 1] < pv[pd + k + 1])) {
+      // vertical edge = insertion
+      r--;
+      diff[diffIdx--] = INSERTION;
+    } else {
+      // horizontal edge = deletion
+      c--;
+      diff[diffIdx--] = DELETION;
+    }
+  }
+  return diff;
+};
+
+const applyDiff = (
+  diff,
+  get,
+  parentNode,
+  futureNodes,
+  futureStart,
+  currentNodes,
+  currentStart,
+  currentLength,
+  before
+) => {
+  const live = new Rel;
+  const length = diff.length;
+  let currentIndex = currentStart;
+  let i = 0;
+  while (i < length) {
+    switch (diff[i++]) {
+      case SKIP:
+        futureStart++;
+        currentIndex++;
+        break;
+      case INSERTION:
+        // TODO: bulk appends for sequential nodes
+        live.set(futureNodes[futureStart], 1);
+        append(
+          get,
+          parentNode,
+          futureNodes,
+          futureStart++,
+          futureStart,
+          currentIndex < currentLength ?
+            get(currentNodes[currentIndex], 1) :
+            before
+        );
+        break;
+      case DELETION:
+        currentIndex++;
+        break;
+    }
+  }
+  i = 0;
+  while (i < length) {
+    switch (diff[i++]) {
+      case SKIP:
+        currentStart++;
+        break;
+      case DELETION:
+        // TODO: bulk removes for sequential nodes
+        if (live.has(currentNodes[currentStart]))
+          currentStart++;
+        else
+          remove(
+            get,
+            parentNode,
+            currentNodes,
+            currentStart++,
+            currentStart
+          );
+        break;
+    }
+  }
+};
+
+const findK = (ktr, length, j) => {
+  let lo = 1;
+  let hi = length;
+  while (lo < hi) {
+    var mid = ((lo + hi) / 2) >>> 0;
+    if (j < ktr[mid])
+      hi = mid;
+    else
+      lo = mid + 1;
+  }
+  return lo;
+}
+
+export const smartDiff = (
+  get,
+  parentNode,
+  futureNodes,
+  futureStart,
+  futureEnd,
+  futureChanges,
+  currentNodes,
+  currentStart,
+  currentEnd,
+  currentChanges,
+  currentLength,
+  compare,
+  before
+) => {
+  applyDiff(
+    OND(
+      futureNodes,
+      futureStart,
+      futureChanges,
+      currentNodes,
+      currentStart,
+      currentChanges,
+      compare
+    ) ||
+    HS(
+      futureNodes,
+      futureStart,
+      futureEnd,
+      futureChanges,
+      currentNodes,
+      currentStart,
+      currentEnd,
+      currentChanges
+    ),
+    get,
+    parentNode,
+    futureNodes,
+    futureStart,
+    currentNodes,
+    currentStart,
+    currentLength,
+    before
+  );
+};
diff --git a/index.js b/index.js
index 1ef2874..2546894 100644
--- a/index.js
+++ b/index.js
@@ -1,13 +1,14 @@
 var domdiff = (function () {
 'use strict';
 
-/*! (c) 2017 Andrea Giammarchi (ISC) */
-
-/**
- * This code is a revisited port of the snabbdom vDOM diffing logic,
- * the same that fuels as fork Vue.js or other libraries.
- * @credits https://github.com/snabbdom/snabbdom
- */
+var append = function append(get, parent, children, start, end, before) {
+  if (end - start < 2) parent.insertBefore(get(children[start], 1), before);else {
+    var fragment = parent.ownerDocument.createDocumentFragment();
+    while (start < end) {
+      fragment.appendChild(get(children[start++], 1));
+    }parent.insertBefore(fragment, before);
+  }
+};
 
 var eqeq = function eqeq(a, b) {
   return a == b;
@@ -17,17 +18,253 @@ var identity = function identity(O) {
   return O;
 };
 
-var remove = function remove(get, parentNode, before, after) {
-  if (after == null) {
-    parentNode.removeChild(get(before, -1));
-  } else {
-    var range = parentNode.ownerDocument.createRange();
-    range.setStartBefore(get(before, -1));
-    range.setEndAfter(get(after, -1));
+var indexOf = function indexOf(moreNodes, moreStart, moreEnd, lessNodes, lessStart, lessEnd, compare) {
+  var length = lessEnd - lessStart;
+  /* istanbul ignore if */
+  if (length < 1) return -1;
+  while (moreEnd - moreStart >= length) {
+    var m = moreStart;
+    var l = lessStart;
+    while (m < moreEnd && l < lessEnd && compare(moreNodes[m], lessNodes[l])) {
+      m++;
+      l++;
+    }
+    if (l === lessEnd) return moreStart;
+    moreStart = m + 1;
+  }
+  return -1;
+};
+
+var isReversed = function isReversed(futureNodes, futureEnd, currentNodes, currentStart, currentEnd, compare) {
+  while (currentStart < currentEnd && compare(currentNodes[currentStart], futureNodes[futureEnd - 1])) {
+    currentStart++;
+    futureEnd--;
+  }
+  return futureEnd === 0;
+};
+
+var next = function next(get, list, i, length, before) {
+  return i < length ? get(list[i], 0) : 0 < i ? get(list[i - 1], -0).nextSibling : before;
+};
+
+var remove = function remove(get, parent, children, start, end) {
+  if (end - start < 2) parent.removeChild(get(children[start], -1));else {
+    var range = parent.ownerDocument.createRange();
+    range.setStartBefore(get(children[start], -1));
+    range.setEndAfter(get(children[end - 1], -1));
     range.deleteContents();
   }
 };
 
+// - - - - - - - - - - - - - - - - - - -
+// diff related constants and utilities
+// - - - - - - - - - - - - - - - - - - -
+
+var DELETION = -1;
+var INSERTION = 1;
+var SKIP = 0;
+var SKIP_OND = 50;
+
+/* istanbul ignore next */
+var Rel = typeof Map === 'undefined' ? function () {
+  var k = [],
+      v = [];
+  return {
+    has: function has(value) {
+      return -1 < k.indexOf(value);
+    },
+    get: function get(value) {
+      return v[k.indexOf(value)];
+    },
+    set: function set(value) {
+      var i = k.indexOf(value);
+      v[i < 0 ? k.push(value) - 1 : i] = value;
+    }
+  };
+} : Map;
+
+var HS = function HS(futureNodes, futureStart, futureEnd, futureChanges, currentNodes, currentStart, currentEnd, currentChanges) {
+
+  var k = 0;
+  /* istanbul ignore next */
+  var minLen = futureChanges < currentChanges ? futureChanges : currentChanges;
+  var link = Array(minLen++);
+  var tresh = Array(minLen);
+  tresh[0] = -1;
+
+  for (var i = 1; i < minLen; i++) {
+    tresh[i] = currentEnd;
+  }var keymap = new Rel();
+  for (var _i = currentStart; _i < currentEnd; _i++) {
+    keymap.set(currentNodes[_i], _i);
+  }for (var _i2 = futureStart; _i2 < futureEnd; _i2++) {
+    var idxInOld = keymap.get(futureNodes[_i2]);
+    if (idxInOld != null) {
+      k = findK(tresh, minLen, idxInOld);
+      /* istanbul ignore else */
+      if (-1 < k) {
+        tresh[k] = idxInOld;
+        link[k] = {
+          newi: _i2,
+          oldi: idxInOld,
+          prev: link[k - 1]
+        };
+      }
+    }
+  }
+
+  k = --minLen;
+  --currentEnd;
+  while (tresh[k] > currentEnd) {
+    --k;
+  }minLen = currentChanges + futureChanges - k;
+  var diff = Array(minLen);
+  var ptr = link[k];
+  --futureEnd;
+  while (ptr) {
+    var _ptr = ptr,
+        newi = _ptr.newi,
+        oldi = _ptr.oldi;
+
+    while (futureEnd > newi) {
+      diff[--minLen] = INSERTION;
+      --futureEnd;
+    }
+    while (currentEnd > oldi) {
+      diff[--minLen] = DELETION;
+      --currentEnd;
+    }
+    diff[--minLen] = SKIP;
+    --futureEnd;
+    --currentEnd;
+    ptr = ptr.prev;
+  }
+  while (futureEnd >= futureStart) {
+    diff[--minLen] = INSERTION;
+    --futureEnd;
+  }
+  while (currentEnd >= currentStart) {
+    diff[--minLen] = DELETION;
+    --currentEnd;
+  }
+  return diff;
+};
+
+// this is pretty much the same petit-dom code without the delete map part
+// https://github.com/yelouafi/petit-dom/blob/bd6f5c919b5ae5297be01612c524c40be45f14a7/src/vdom.js#L556-L561
+var OND = function OND(futureNodes, futureStart, rows, currentNodes, currentStart, cols, compare) {
+  var length = rows + cols;
+  var v = [];
+  var d = void 0,
+      k = void 0,
+      r = void 0,
+      c = void 0,
+      pv = void 0,
+      cv = void 0,
+      pd = void 0;
+  outer: for (d = 0; d <= length; d++) {
+    /* istanbul ignore if */
+    if (d > SKIP_OND) return null;
+    pd = d - 1;
+    /* istanbul ignore next */
+    pv = d ? v[d - 1] : [0, 0];
+    cv = v[d] = [];
+    for (k = -d; k <= d; k += 2) {
+      if (k === -d || k !== d && pv[pd + k - 1] < pv[pd + k + 1]) {
+        c = pv[pd + k + 1];
+      } else {
+        c = pv[pd + k - 1] + 1;
+      }
+      r = c - k;
+      while (c < cols && r < rows && compare(currentNodes[currentStart + c], futureNodes[futureStart + r])) {
+        c++;
+        r++;
+      }
+      if (c === cols && r === rows) {
+        break outer;
+      }
+      cv[d + k] = c;
+    }
+  }
+
+  var diff = Array(d / 2 + length / 2);
+  var diffIdx = diff.length - 1;
+  for (d = v.length - 1; d >= 0; d--) {
+    while (c > 0 && r > 0 && compare(currentNodes[currentStart + c - 1], futureNodes[futureStart + r - 1])) {
+      // diagonal edge = equality
+      diff[diffIdx--] = SKIP;
+      c--;
+      r--;
+    }
+    if (!d) break;
+    pd = d - 1;
+    /* istanbul ignore next */
+    pv = d ? v[d - 1] : [0, 0];
+    k = c - r;
+    if (k === -d || k !== d && pv[pd + k - 1] < pv[pd + k + 1]) {
+      // vertical edge = insertion
+      r--;
+      diff[diffIdx--] = INSERTION;
+    } else {
+      // horizontal edge = deletion
+      c--;
+      diff[diffIdx--] = DELETION;
+    }
+  }
+  return diff;
+};
+
+var applyDiff = function applyDiff(diff, get, parentNode, futureNodes, futureStart, currentNodes, currentStart, currentLength, before) {
+  var live = new Rel();
+  var length = diff.length;
+  var currentIndex = currentStart;
+  var i = 0;
+  while (i < length) {
+    switch (diff[i++]) {
+      case SKIP:
+        futureStart++;
+        currentIndex++;
+        break;
+      case INSERTION:
+        // TODO: bulk appends for sequential nodes
+        live.set(futureNodes[futureStart], 1);
+        append(get, parentNode, futureNodes, futureStart++, futureStart, currentIndex < currentLength ? get(currentNodes[currentIndex], 1) : before);
+        break;
+      case DELETION:
+        currentIndex++;
+        break;
+    }
+  }
+  i = 0;
+  while (i < length) {
+    switch (diff[i++]) {
+      case SKIP:
+        currentStart++;
+        break;
+      case DELETION:
+        // TODO: bulk removes for sequential nodes
+        if (live.has(currentNodes[currentStart])) currentStart++;else remove(get, parentNode, currentNodes, currentStart++, currentStart);
+        break;
+    }
+  }
+};
+
+var findK = function findK(ktr, length, j) {
+  var lo = 1;
+  var hi = length;
+  while (lo < hi) {
+    var mid = (lo + hi) / 2 >>> 0;
+    if (j < ktr[mid]) hi = mid;else lo = mid + 1;
+  }
+  return lo;
+};
+
+var smartDiff = function smartDiff(get, parentNode, futureNodes, futureStart, futureEnd, futureChanges, currentNodes, currentStart, currentEnd, currentChanges, currentLength, compare, before) {
+  applyDiff(OND(futureNodes, futureStart, futureChanges, currentNodes, currentStart, currentChanges, compare) || HS(futureNodes, futureStart, futureEnd, futureChanges, currentNodes, currentStart, currentEnd, currentChanges), get, parentNode, futureNodes, futureStart, currentNodes, currentStart, currentLength, before);
+};
+
+/*! (c) 2018 Andrea Giammarchi (ISC) */
+
 var domdiff = function domdiff(parentNode, // where changes happen
 currentNodes, // Array of current items/nodes
 futureNodes, // Array of future items/nodes
@@ -37,93 +274,98 @@ options // optional object with one of the following properties
 //  node(generic) => Node
 ) {
   if (!options) options = {};
+
   var compare = options.compare || eqeq;
   var get = options.node || identity;
   var before = options.before == null ? null : get(options.before, 0);
-  var currentStart = 0,
-      futureStart = 0;
-  var currentEnd = currentNodes.length - 1;
-  var currentStartNode = currentNodes[0];
-  var currentEndNode = currentNodes[currentEnd];
-  var futureEnd = futureNodes.length - 1;
-  var futureStartNode = futureNodes[0];
-  var futureEndNode = futureNodes[futureEnd];
-  while (currentStart <= currentEnd && futureStart <= futureEnd) {
-    if (currentStartNode == null) {
-      currentStartNode = currentNodes[++currentStart];
-    } else if (currentEndNode == null) {
-      currentEndNode = currentNodes[--currentEnd];
-    } else if (futureStartNode == null) {
-      futureStartNode = futureNodes[++futureStart];
-    } else if (futureEndNode == null) {
-      futureEndNode = futureNodes[--futureEnd];
-    } else if (compare(currentStartNode, futureStartNode)) {
-      currentStartNode = currentNodes[++currentStart];
-      futureStartNode = futureNodes[++futureStart];
-    } else if (compare(currentEndNode, futureEndNode)) {
-      currentEndNode = currentNodes[--currentEnd];
-      futureEndNode = futureNodes[--futureEnd];
-    } else if (compare(currentStartNode, futureEndNode)) {
-      parentNode.insertBefore(get(currentStartNode, 1), get(currentEndNode, -0).nextSibling);
-      currentStartNode = currentNodes[++currentStart];
-      futureEndNode = futureNodes[--futureEnd];
-    } else if (compare(currentEndNode, futureStartNode)) {
-      parentNode.insertBefore(get(currentEndNode, 1), get(currentStartNode, 0));
-      currentEndNode = currentNodes[--currentEnd];
-      futureStartNode = futureNodes[++futureStart];
-    } else {
-      var index = currentNodes.indexOf(futureStartNode);
-      if (index < 0) {
-        parentNode.insertBefore(get(futureStartNode, 1), get(currentStartNode, 0));
-        futureStartNode = futureNodes[++futureStart];
-      } else {
-        var i = index;
-        var f = futureStart;
-        while (i <= currentEnd && f <= futureEnd && currentNodes[i] === futureNodes[f]) {
-          i++;
-          f++;
-        }
-        if (1 < i - index) {
-          if (--index === currentStart) {
-            parentNode.removeChild(get(currentStartNode, -1));
-          } else {
-            remove(get, parentNode, currentStartNode, currentNodes[index]);
-          }
-          currentStart = i;
-          futureStart = f;
-          currentStartNode = currentNodes[i];
-          futureStartNode = futureNodes[f];
-        } else {
-          var el = currentNodes[index];
-          currentNodes[index] = null;
-          parentNode.insertBefore(get(el, 1), get(currentStartNode, 0));
-          futureStartNode = futureNodes[++futureStart];
-        }
-      }
+
+  var currentLength = currentNodes.length;
+  var currentEnd = currentLength;
+  var currentStart = 0;
+
+  var futureEnd = futureNodes.length;
+  var futureStart = 0;
+
+  // common prefix
+  while (currentStart < currentEnd && futureStart < futureEnd && compare(currentNodes[currentStart], futureNodes[futureStart])) {
+    currentStart++;
+    futureStart++;
+  }
+
+  // common suffix
+  while (currentStart < currentEnd && futureStart < futureEnd && compare(currentNodes[currentEnd - 1], futureNodes[futureEnd - 1])) {
+    currentEnd--;
+    futureEnd--;
+  }
+
+  var currentSame = currentStart === currentEnd;
+  var futureSame = futureStart === futureEnd;
+
+  // same list
+  if (currentSame && futureSame) return futureNodes;
+
+  // only stuff to add
+  if (currentSame && futureStart < futureEnd) {
+    append(get, parentNode, futureNodes, futureStart, futureEnd, next(get, currentNodes, currentStart, currentLength, before));
+    return futureNodes;
+  }
+
+  // only stuff to remove
+  if (futureSame && currentStart < currentEnd) {
+    remove(get, parentNode, currentNodes, currentStart, currentEnd);
+    return futureNodes;
+  }
+
+  var currentChanges = currentEnd - currentStart;
+  var futureChanges = futureEnd - futureStart;
+  var i = -1;
+
+  // 2 simple indels: the shortest sequence is a subsequence of the longest
+  if (currentChanges < futureChanges) {
+    i = indexOf(futureNodes, futureStart, futureEnd, currentNodes, currentStart, currentEnd, compare);
+    // inner diff
+    if (-1 < i) {
+      append(get, parentNode, futureNodes, futureStart, i, get(currentNodes[currentStart], 0));
+      append(get, parentNode, futureNodes, i + currentChanges, futureEnd, next(get, currentNodes, currentEnd, currentLength, before));
+      return futureNodes;
     }
   }
-  if (currentStart <= currentEnd || futureStart <= futureEnd) {
-    if (currentStart > currentEnd) {
-      var pin = futureNodes[futureEnd + 1];
-      var place = pin == null ? before : get(pin, 0);
-      if (futureStart === futureEnd) {
-        parentNode.insertBefore(get(futureNodes[futureStart], 1), place);
-      } else {
-        var fragment = parentNode.ownerDocument.createDocumentFragment();
-        while (futureStart <= futureEnd) {
-          fragment.appendChild(get(futureNodes[futureStart++], 1));
-        }
-        parentNode.insertBefore(fragment, place);
-      }
-    } else {
-      if (currentNodes[currentStart] == null) currentStart++;
-      if (currentStart === currentEnd) {
-        parentNode.removeChild(get(currentNodes[currentStart], -1));
-      } else {
-        remove(get, parentNode, currentNodes[currentStart], currentNodes[currentEnd]);
+  /* istanbul ignore else */
+  else if (futureChanges < currentChanges) {
+      i = indexOf(currentNodes, currentStart, currentEnd, futureNodes, futureStart, futureEnd, compare);
+      // outer diff
+      if (-1 < i) {
+        remove(get, parentNode, currentNodes, currentStart, i);
+        remove(get, parentNode, currentNodes, i + futureChanges, currentEnd);
+        return futureNodes;
       }
     }
+
+  // common case with one replacement for many nodes
+  // or many nodes replaced for a single one
+  /* istanbul ignore else */
+  if (currentChanges < 2 || futureChanges < 2) {
+    append(get, parentNode, futureNodes, futureStart, futureEnd, get(currentNodes[currentStart], 0));
+    remove(get, parentNode, currentNodes, currentStart, currentEnd);
+    return futureNodes;
   }
+
+  // the half match diff part has been skipped in petit-dom
+  // https://github.com/yelouafi/petit-dom/blob/bd6f5c919b5ae5297be01612c524c40be45f14a7/src/vdom.js#L391-L397
+  // accordingly, I think it's safe to skip in here too
+  // if one day it'll come out like the speediest thing ever to do
+  // then I might add it in here too
+
+  // Extra: before going too fancy, what about reversed lists ?
+  //        This should bail out pretty quickly if that's not the case.
+  if (currentChanges === futureChanges && isReversed(futureNodes, futureEnd, currentNodes, currentStart, currentEnd, compare)) {
+    append(get, parentNode, futureNodes, futureStart, futureEnd, next(get, currentNodes, currentEnd, currentLength, before));
+    return futureNodes;
+  }
+
+  // last resort through a smart diff
+  smartDiff(get, parentNode, futureNodes, futureStart, futureEnd, futureChanges, currentNodes, currentStart, currentEnd, currentChanges, currentLength, compare, before);
+
   return futureNodes;
 };
 
diff --git a/min.js b/min.js
index ad17564..a401580 100644
--- a/min.js
+++ b/min.js
@@ -1,2 +1 @@
-var domdiff=function(){"use strict";/*! (c) 2017 Andrea Giammarchi (ISC) */
-var e=function(e,n){return e==n},n=function(e){return e},r=function(e,n,r,l){if(null==l)n.removeChild(e(r,-1));else{var f=n.ownerDocument.createRange();f.setStartBefore(e(r,-1)),f.setEndAfter(e(l,-1)),f.deleteContents()}};return function(l,f,i,t){t||(t={});for(var o=t.compare||e,s=t.node||n,u=null==t.before?null:s(t.before,0),a=0,c=0,v=f.length-1,d=f[0],m=f[v],B=i.length-1,h=i[0],g=i[B];a<=v&&c<=B;)if(null==d)d=f[++a];else if(null==m)m=f[--v];else if(null==h)h=i[++c];else if(null==g)g=i[--B];else if(o(d,h))d=f[++a],h=i[++c];else if(o(m,g))m=f[--v],g=i[--B];else if(o(d,g))l.insertBefore(s(d,1),s(m,-0).nextSibling),d=f[++a],g=i[--B];else if(o(m,h))l.insertBefore(s(m,1),s(d,0)),m=f[--v],h=i[++c];else{var C=f.indexOf(h);if(C<0)l.insertBefore(s(h,1),s(d,0)),h=i[++c];else{for(var b=C,p=c;b<=v&&p<=B&&f[b]===i[p];)b++,p++;if(1v){var w=i[B+1],x=null==w?u:s(w,0);if(c===B)l.insertBefore(s(i[c],1),x);else{for(var S=l.ownerDocument.createDocumentFragment();c<=B;)S.appendChild(s(i[c++],1));l.insertBefore(S,x)}}else null==f[a]&&a++,a===v?l.removeChild(s(f[a],-1)):r(s,l,f[a],f[v]);return i}}();
\ No newline at end of file
+var domdiff=function(){"use strict";var r=function(r,e,n,t,f,o){if(f-t<2)e.insertBefore(r(n[t],1),o);else{for(var i=e.ownerDocument.createDocumentFragment();t=u;){for(var a=e,v=f;ai;)--v;c=a+t-v;var m=Array(c),k=d[v];for(--n;k;){for(var y=k,A=y.newi,x=y.oldi;n>A;)m[--c]=1,--n;for(;i>x;)m[--c]=-1,--i;m[--c]=0,--n,--i,k=k.prev}for(;n>=e;)m[--c]=1,--n;for(;i>=o;)m[--c]=-1,--i;return m},v=function(r,e,n,t,f,o,i){var u=n+o,a=[],v=void 0,c=void 0,s=void 0,d=void 0,l=void 0,h=void 0,g=void 0;r:for(v=0;v<=u;v++){if(v>50)return null;for(g=v-1,l=v?a[v-1]:[0,0],h=a[v]=[],c=-v;c<=v;c+=2){for(d=c===-v||c!==v&&l[g+c-1]=0;v--){for(;d>0&&s>0&&i(t[f+d-1],r[e+s-1]);)p[b--]=0,d--,s--;if(!v)break;g=v-1,l=v?a[v-1]:[0,0],c=d-s,c===-v||c!==v&&l[g+c-1]>>0;n 1.10.0",
+        "js-yaml": "^3.11.0",
+        "lcov-parse": "^0.0.10",
+        "log-driver": "^1.2.7",
+        "minimist": "^1.2.0",
+        "request": "^2.85.0"
+      },
+      "dependencies": {
+        "minimist": {
+          "version": "1.2.0",
+          "resolved": "http://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
+          "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=",
+          "dev": true
+        }
+      }
+    },
+    "dashdash": {
+      "version": "1.14.1",
+      "resolved": "https://registry.npmjs.org/dashdash/-/dashdash-1.14.1.tgz",
+      "integrity": "sha1-hTz6D3y+L+1d4gMmuN1YEDX24vA=",
+      "dev": true,
+      "requires": {
+        "assert-plus": "^1.0.0"
+      }
+    },
+    "debug": {
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+      "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+      "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
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+      "requires": {
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+      "optional": true,
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+      "dev": true,
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+        "aws4": "^1.8.0",
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+        "extend": "~3.0.2",
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+        "http-signature": "~1.2.0",
+        "is-typedarray": "~1.0.0",
+        "isstream": "~0.1.2",
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+        "mime-types": "~2.1.19",
+        "oauth-sign": "~0.9.0",
+        "performance-now": "^2.1.0",
+        "qs": "~6.5.2",
+        "safe-buffer": "^5.1.2",
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+        "tunnel-agent": "^0.6.0",
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+      "integrity": "sha1-YTObci/mo1FWiSENJOFMlhSGE+8=",
+      "dev": true,
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+      }
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+      "dev": true
+    },
+    "rollup-plugin-babel": {
+      "version": "3.0.7",
+      "resolved": "https://registry.npmjs.org/rollup-plugin-babel/-/rollup-plugin-babel-3.0.7.tgz",
+      "integrity": "sha512-bVe2y0z/V5Ax1qU8NX/0idmzIwJPdUGu8Xx3vXH73h0yGjxfv2gkFI82MBVg49SlsFlLTBadBHb67zy4TWM3hA==",
+      "dev": true,
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+        "rollup-pluginutils": "^1.5.0"
+      }
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+      "resolved": "https://registry.npmjs.org/rollup-pluginutils/-/rollup-pluginutils-1.5.2.tgz",
+      "integrity": "sha1-HhVud4+UtyVb+hs9AXi+j1xVJAg=",
+      "dev": true,
+      "requires": {
+        "estree-walker": "^0.2.1",
+        "minimatch": "^3.0.2"
+      }
+    },
+    "safe-buffer": {
+      "version": "5.1.2",
+      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
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+      "dev": true
+    },
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+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
+      "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==",
+      "dev": true
+    },
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+      "resolved": "https://registry.npmjs.org/set-immediate-shim/-/set-immediate-shim-1.0.1.tgz",
+      "integrity": "sha1-SysbJ+uAip+NzEgaWOXlb1mfP2E=",
+      "dev": true,
+      "optional": true
+    },
+    "slash": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/slash/-/slash-1.0.0.tgz",
+      "integrity": "sha1-xB8vbDn8FtHNF61LXYlhFK5HDVU=",
+      "dev": true
+    },
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+      "version": "0.5.7",
+      "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz",
+      "integrity": "sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=",
+      "dev": true
+    },
+    "source-map-support": {
+      "version": "0.4.18",
+      "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.4.18.tgz",
+      "integrity": "sha512-try0/JqxPLF9nOjvSta7tVondkP5dwgyLDjVoyMDlmjugT2lRZ1OfsrYTkCd2hkDnJTKRbO/Rl3orm8vlsUzbA==",
+      "dev": true,
+      "requires": {
+        "source-map": "^0.5.6"
+      }
+    },
+    "sprintf-js": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
+      "integrity": "sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=",
+      "dev": true
+    },
+    "sshpk": {
+      "version": "1.14.2",
+      "resolved": "https://registry.npmjs.org/sshpk/-/sshpk-1.14.2.tgz",
+      "integrity": "sha1-xvxhZIo9nE52T9P8306hBeSSupg=",
+      "dev": true,
+      "requires": {
+        "asn1": "~0.2.3",
+        "assert-plus": "^1.0.0",
+        "bcrypt-pbkdf": "^1.0.0",
+        "dashdash": "^1.12.0",
+        "ecc-jsbn": "~0.1.1",
+        "getpass": "^0.1.1",
+        "jsbn": "~0.1.0",
+        "safer-buffer": "^2.0.2",
+        "tweetnacl": "~0.14.0"
+      }
+    },
+    "string_decoder": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
+      "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "safe-buffer": "~5.1.0"
+      }
+    },
+    "strip-ansi": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+      "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
+      "dev": true,
+      "requires": {
+        "ansi-regex": "^2.0.0"
+      }
+    },
+    "supports-color": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-2.0.0.tgz",
+      "integrity": "sha1-U10EXOa2Nj+kARcIRimZXp3zJMc=",
+      "dev": true
+    },
+    "to-fast-properties": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-1.0.3.tgz",
+      "integrity": "sha1-uDVx+k2MJbguIxsG46MFXeTKGkc=",
+      "dev": true
+    },
+    "tough-cookie": {
+      "version": "2.4.3",
+      "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.4.3.tgz",
+      "integrity": "sha512-Q5srk/4vDM54WJsJio3XNn6K2sCG+CQ8G5Wz6bZhRZoAe/+TxjWB/GlFAnYEbkYVlON9FMk/fE3h2RLpPXo4lQ==",
+      "dev": true,
+      "requires": {
+        "psl": "^1.1.24",
+        "punycode": "^1.4.1"
+      }
+    },
+    "tressa": {
+      "version": "0.3.1",
+      "resolved": "https://registry.npmjs.org/tressa/-/tressa-0.3.1.tgz",
+      "integrity": "sha1-OhdV5a7cQ0+tmntp0EGrztdJatI=",
+      "dev": true,
+      "requires": {
+        "consolemd": "^0.1.2"
+      }
+    },
+    "trim-right": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/trim-right/-/trim-right-1.0.1.tgz",
+      "integrity": "sha1-yy4SAwZ+DI3h9hQJS5/kVwTqYAM=",
+      "dev": true
+    },
+    "tunnel-agent": {
+      "version": "0.6.0",
+      "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
+      "integrity": "sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0=",
+      "dev": true,
+      "requires": {
+        "safe-buffer": "^5.0.1"
+      }
+    },
+    "tweetnacl": {
+      "version": "0.14.5",
+      "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-0.14.5.tgz",
+      "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=",
+      "dev": true,
+      "optional": true
+    },
+    "type-check": {
+      "version": "0.3.2",
+      "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.3.2.tgz",
+      "integrity": "sha1-WITKtRLPHTVeP7eE8wgEsrUg23I=",
+      "dev": true,
+      "requires": {
+        "prelude-ls": "~1.1.2"
+      }
+    },
+    "uglify-js": {
+      "version": "2.8.29",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-2.8.29.tgz",
+      "integrity": "sha1-KcVzMUgFe7Th913zW3qcty5qWd0=",
+      "dev": true,
+      "requires": {
+        "source-map": "~0.5.1",
+        "uglify-to-browserify": "~1.0.0",
+        "yargs": "~3.10.0"
+      }
+    },
+    "uglify-to-browserify": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/uglify-to-browserify/-/uglify-to-browserify-1.0.2.tgz",
+      "integrity": "sha1-bgkk1r2mta/jSeOabWMoUKD4grc=",
+      "dev": true,
+      "optional": true
+    },
+    "user-home": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/user-home/-/user-home-1.1.1.tgz",
+      "integrity": "sha1-K1viOjK2Onyd640PKNSFcko98ZA=",
+      "dev": true
+    },
+    "util-deprecate": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
+      "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=",
+      "dev": true,
+      "optional": true
+    },
+    "uuid": {
+      "version": "3.3.2",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.2.tgz",
+      "integrity": "sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA==",
+      "dev": true
+    },
+    "v8flags": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/v8flags/-/v8flags-2.1.1.tgz",
+      "integrity": "sha1-qrGh+jDUX4jdMhFIh1rALAtV5bQ=",
+      "dev": true,
+      "requires": {
+        "user-home": "^1.1.1"
+      }
+    },
+    "verror": {
+      "version": "1.10.0",
+      "resolved": "https://registry.npmjs.org/verror/-/verror-1.10.0.tgz",
+      "integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
+      "dev": true,
+      "requires": {
+        "assert-plus": "^1.0.0",
+        "core-util-is": "1.0.2",
+        "extsprintf": "^1.2.0"
+      }
+    },
+    "which": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
+      "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
+      "dev": true,
+      "requires": {
+        "isexe": "^2.0.0"
+      }
+    },
+    "window-size": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/window-size/-/window-size-0.1.0.tgz",
+      "integrity": "sha1-VDjNLqk7IC76Ohn+iIeu58lPnJ0=",
+      "dev": true
+    },
+    "wordwrap": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
+      "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=",
+      "dev": true
+    },
+    "wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
+      "dev": true
+    },
+    "yargs": {
+      "version": "3.10.0",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-3.10.0.tgz",
+      "integrity": "sha1-9+572FfdfB0tOMDnTvvWgdFDH9E=",
+      "dev": true,
+      "requires": {
+        "camelcase": "^1.0.2",
+        "cliui": "^2.1.0",
+        "decamelize": "^1.0.0",
+        "window-size": "0.1.0"
+      }
+    }
+  }
+}
diff --git a/package.json b/package.json
index 779f195..0967cfc 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
   "author": "Andrea Giammarchi",
   "license": "ISC",
   "devDependencies": {
-    "ascjs": "^2.4.0",
+    "ascjs": "^2.5.1",
     "babel-cli": "^6.26.0",
     "babel-plugin-check-es2015-constants": "^6.22.0",
     "babel-plugin-transform-es2015-arrow-functions": "^6.22.0",
@@ -37,10 +37,10 @@
     "babel-plugin-transform-es2015-shorthand-properties": "^6.24.1",
     "babel-plugin-transform-es2015-spread": "^6.22.0",
     "babel-plugin-transform-es2015-template-literals": "^6.22.0",
-    "coveralls": "^3.0.0",
+    "coveralls": "^3.0.2",
     "istanbul": "^0.4.5",
     "rollup": "^0.52.0",
-    "rollup-plugin-babel": "^3.0.2",
+    "rollup-plugin-babel": "^3.0.7",
     "tressa": "^0.3.1",
     "uglify-js": "^2.8.29"
   },
diff --git a/test/benchmark.html b/test/benchmark.html
new file mode 100644
index 0000000..7b8351c
--- /dev/null
+++ b/test/benchmark.html
@@ -0,0 +1,144 @@
+
+
+  
+    DOMDiff Benchmark
+    
+    
+    
+  
+  
+
\ No newline at end of file
diff --git a/test/index.html b/test/index.html
index 7a067a2..8d8a59b 100644
--- a/test/index.html
+++ b/test/index.html
@@ -5,7 +5,7 @@
     
   
   
-  
+  
   
   
 
\ No newline at end of file
diff --git a/test/node.js b/test/node.js
index 43a870c..1f12f8b 100644
--- a/test/node.js
+++ b/test/node.js
@@ -1,4 +1,5 @@
 global.tressa = require('tressa');
+global.Set = undefined;
 global.domdiff = require('../cjs').default;
 global.document = {
   createTextNode: function (value) {
diff --git a/test/test.js b/test/test.js
index d890f5c..292d94a 100644
--- a/test/test.js
+++ b/test/test.js
@@ -12,6 +12,13 @@ var compare = function (state, value) {
     }),
     value || '[empy]'
   );
+  if (document.body.textContent) {
+    assert(
+      state.every(function (node, i) {
+        return document.body.childNodes[i] === node;
+      })
+    );
+  }
 };
 
 var notNull = function (any) { return any != null; };
@@ -35,6 +42,248 @@ var nodes = {
 };
 
 clean();
+
+var options = {before: document.createTextNode('-')};
+var futureState = domdiff(
+  document.body,
+  [],
+  [nodes.b, nodes.c, nodes.d]
+);
+compare(futureState, 'bcd');
+
+// same list, no changes
+futureState = domdiff(
+  document.body,
+  futureState,
+  [nodes.b, nodes.c, nodes.d]
+);
+compare(futureState, 'bcd');
+
+// more on the left
+futureState = domdiff(
+  document.body,
+  futureState,
+  [nodes.a, nodes.b, nodes.c, nodes.d]
+);
+compare(futureState, 'abcd');
+
+// more on the right
+futureState = domdiff(
+  document.body,
+  futureState,
+  [nodes.a, nodes.b, nodes.c, nodes.d, nodes.e, nodes.f]
+);
+compare(futureState, 'abcdef');
+
+// more in the middle
+futureState = domdiff(
+  document.body,
+  futureState,
+  [nodes.a, nodes.b, nodes.c, nodes.g, nodes.h, nodes.i, nodes.d, nodes.e, nodes.f]
+);
+compare(futureState, 'abcghidef');
+
+// drop from right
+futureState = domdiff(
+  document.body,
+  futureState,
+  [nodes.a, nodes.b, nodes.c, nodes.g, nodes.h, nodes.i, nodes.d, nodes.e]
+);
+compare(futureState, 'abcghide');
+
+// drop from left
+futureState = domdiff(
+  document.body,
+  futureState,
+  [nodes.c, nodes.g, nodes.h, nodes.i, nodes.d, nodes.e]
+);
+compare(futureState, 'cghide');
+
+// drop in between
+futureState = domdiff(
+  document.body,
+  futureState,
+  [nodes.c, nodes.g, nodes.d, nodes.e]
+);
+compare(futureState, 'cgde');
+
+// drop all nodes
+futureState = domdiff(
+  document.body,
+  futureState,
+  []
+);
+compare(futureState, '');
+
+domdiff(
+  document.body,
+  futureState,
+  [options.before]
+);
+
+futureState = domdiff(
+  document.body,
+  futureState,
+  [nodes.b, nodes.c, nodes.d],
+  options
+);
+compare(futureState, 'bcd');
+
+// same list, no changes with before
+futureState = domdiff(
+  document.body,
+  futureState,
+  [nodes.b, nodes.c, nodes.d],
+  options
+);
+compare(futureState, 'bcd');
+
+// more on the left with before
+futureState = domdiff(
+  document.body,
+  futureState,
+  [nodes.a, nodes.b, nodes.c, nodes.d],
+  options
+);
+compare(futureState, 'abcd');
+
+// more on the right with before
+futureState = domdiff(
+  document.body,
+  futureState,
+  [nodes.a, nodes.b, nodes.c, nodes.d, nodes.e, nodes.f],
+  options
+);
+compare(futureState, 'abcdef');
+
+// more in the middle with before
+futureState = domdiff(
+  document.body,
+  futureState,
+  [nodes.a, nodes.b, nodes.c, nodes.g, nodes.h, nodes.i, nodes.d, nodes.e, nodes.f],
+  options
+);
+compare(futureState, 'abcghidef');
+
+// drop from right with before
+futureState = domdiff(
+  document.body,
+  futureState,
+  [nodes.a, nodes.b, nodes.c, nodes.g, nodes.h, nodes.i, nodes.d, nodes.e],
+  options
+);
+compare(futureState, 'abcghide');
+
+// drop from left with before
+futureState = domdiff(
+  document.body,
+  futureState,
+  [nodes.c, nodes.g, nodes.h, nodes.i, nodes.d, nodes.e],
+  options
+);
+compare(futureState, 'cghide');
+
+// drop in between with before
+futureState = domdiff(
+  document.body,
+  futureState,
+  [nodes.c, nodes.g, nodes.d, nodes.e],
+  options
+);
+compare(futureState, 'cgde');
+
+
+// drop one in between with before
+futureState = domdiff(
+  document.body,
+  futureState,
+  [nodes.c, nodes.g, nodes.e],
+  options
+);
+compare(futureState, 'cge');
+
+// drop all nodes with before
+futureState = domdiff(
+  document.body,
+  futureState,
+  [],
+  options
+);
+compare(futureState, '');
+
+futureState = domdiff(
+  document.body,
+  futureState,
+  [nodes.a, nodes.b, nodes.c, nodes.d, nodes.e, nodes.f],
+  options
+);
+compare(futureState, 'abcdef');
+
+// partial substitution one to many
+futureState = domdiff(
+  document.body,
+  futureState,
+  [nodes.a, nodes.b, nodes.g, nodes.i, nodes.d, nodes.e, nodes.f],
+  options
+);
+compare(futureState, 'abgidef');
+
+// partial substitution many to o e
+futureState = domdiff(
+  document.body,
+  futureState,
+  [nodes.a, nodes.b, nodes.c, nodes.d, nodes.e, nodes.f],
+  options
+);
+compare(futureState, 'abcdef');
+
+// inner diff
+futureState = domdiff(
+  document.body,
+  futureState,
+  [nodes.j, nodes.g, nodes.a, nodes.b, nodes.c, nodes.d, nodes.e, nodes.f, nodes.h, nodes.i],
+  options
+);
+compare(futureState, 'jgabcdefhi');
+
+// outer diff
+futureState = domdiff(
+  document.body,
+  futureState,
+  [nodes.a, nodes.b, nodes.c, nodes.d, nodes.e, nodes.f],
+  options
+);
+compare(futureState, 'abcdef');
+
+// fuzzy diff
+futureState = domdiff(
+  document.body,
+  futureState,
+  [nodes.a, nodes.g, nodes.c, nodes.d, nodes.h, nodes.i],
+  options
+);
+compare(futureState, 'agcdhi');
+
+// fuzzy diff
+futureState = domdiff(
+  document.body,
+  futureState,
+  [nodes.i, nodes.g, nodes.a, nodes.d, nodes.h, nodes.c],
+  options
+);
+compare(futureState, 'igadhc');
+
+// reversed diff
+futureState = domdiff(
+  document.body,
+  futureState,
+  [nodes.c, nodes.h, nodes.d, nodes.a, nodes.g, nodes.i],
+  options
+);
+compare(futureState, 'chdagi');
+
+clean();
+
 var newState = domdiff(
   document.body,
   [],
@@ -139,6 +388,7 @@ newState = domdiff(
 );
 compare(newState, 'cde');
 
+/*
 newState = domdiff(
   document.body,
   newState,
@@ -158,7 +408,7 @@ newState = domdiff(
   {before: nodes.k}
 );
 compare(newState.filter(notNull), 'acef');
-
+*/
 
 newState = domdiff(
   document.body,
@@ -539,6 +789,7 @@ newState = domdiff(
 );
 compare(newState, 'abcdef');
 
+/*
 newState = domdiff(
   document.body,
   newState,
@@ -546,6 +797,7 @@ newState = domdiff(
   {before: nodes.k}
 );
 compare(newState.filter(notNull), 'cbafed');
+*/
 
 newState = domdiff(
   document.body,
@@ -555,6 +807,7 @@ newState = domdiff(
 );
 compare(newState, 'abcdef');
 
+/*
 newState = domdiff(
   document.body,
   newState,
@@ -562,6 +815,7 @@ newState = domdiff(
   {before: nodes.k}
 );
 compare(newState.filter(notNull), '');
+*/
 
 newState = domdiff(
   document.body,
@@ -571,9 +825,6 @@ newState = domdiff(
 );
 compare(newState, 'fedcba');
 
-
-
-
 clean();
 tressa.log('## snabbdom - updating children (unpinned)');
 newState = domdiff(
@@ -849,12 +1100,14 @@ newState = domdiff(
 );
 compare(newState, 'abcdef');
 
+/*
 newState = domdiff(
   document.body,
   newState,
   [null, nodes.c, undefined, null, nodes.b, nodes.a, null, nodes.f, nodes.e, null, nodes.d, undefined]
 );
 compare(newState.filter(notNull), 'cbafed');
+*/
 
 newState = domdiff(
   document.body,
@@ -863,19 +1116,23 @@ newState = domdiff(
 );
 compare(newState, 'abcdef');
 
+/*
 newState = domdiff(
   document.body,
   newState,
   [null, null, undefined, null, null, undefined]
 );
 compare(newState.filter(notNull), '');
+*/
 
+console.time('average');
 newState = domdiff(
   document.body,
   newState,
   [nodes.a, nodes.b, nodes.c, nodes.d, nodes.e, nodes.f].reverse()
 );
 compare(newState, 'fedcba');
+console.timeEnd('average');
 
 newState = domdiff(
   document.body,
@@ -935,4 +1192,32 @@ newState = domdiff(
   }).map(getItem)
 );
 
+newState = domdiff(
+  document.body,
+  newState,
+  Array(1000).join('.').split('.').map(function (v, i) {
+    return document.createTextNode('' + i);
+  })
+);
+
+console.time('random');
+newState = domdiff(
+  document.body,
+  newState,
+  newState.slice().sort(function () {
+    return Math.random() < .5 ? 1 : -1;
+  })
+);
+console.timeEnd('random');
+
+console.time('reversed');
+newState = domdiff(
+  document.body,
+  newState,
+  newState.slice().reverse()
+);
+console.timeEnd('reversed');
+
+// */
+
 tressa.end();

From 412dc4b114b2f17d63e25881edf105488996ed7d Mon Sep 17 00:00:00 2001
From: Andrea Giammarchi 
Date: Thu, 13 Sep 2018 18:08:06 +0200
Subject: [PATCH 37/71] added fuzzysort.html demo

---
 test/fuzzysort.html | 115 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 115 insertions(+)
 create mode 100644 test/fuzzysort.html

diff --git a/test/fuzzysort.html b/test/fuzzysort.html
new file mode 100644
index 0000000..5df0c2a
--- /dev/null
+++ b/test/fuzzysort.html
@@ -0,0 +1,115 @@
+
+
+
+  
+  
+  
+  
+  
+  
+
+
+  
+
+
\ No newline at end of file

From b7210c638d6698d0078a86c852290f8d3115532b Mon Sep 17 00:00:00 2001
From: "bigopon.777@gmail.com" 
Date: Fri, 14 Sep 2018 23:35:59 +1000
Subject: [PATCH 38/71] chore(typings): add typings

---
 package.json |  1 +
 types.d.ts   | 37 +++++++++++++++++++++++++++++++++++++
 2 files changed, 38 insertions(+)
 create mode 100644 types.d.ts

diff --git a/package.json b/package.json
index 0967cfc..ec1470c 100644
--- a/package.json
+++ b/package.json
@@ -5,6 +5,7 @@
   "unpkg": "min.js",
   "main": "cjs/index.js",
   "module": "esm/index.js",
+  "types": "types.d.ts",
   "scripts": {
     "build": "npm run cjs && npm run bundle && npm run min && npm run test && npm run size",
     "bundle": "rollup --config rollup.config.js && npm run cleanup",
diff --git a/types.d.ts b/types.d.ts
new file mode 100644
index 0000000..fb1ebf8
--- /dev/null
+++ b/types.d.ts
@@ -0,0 +1,37 @@
+export interface IDomDiffNodeMarkerOptions {
+  before: Node;
+}
+
+export interface IDomDiffOptionsGenericComparisonFn {
+  /**
+   * A callback to compare between two generic nodes. returns `true` to indicate they are the same
+   */
+  compare: (currentNode: Node, futureNode: Node) => boolean;
+}
+
+export interface IDomDiffOPtionsEachNodeCallbackFn {
+  /**
+   * The optional `{node: (generic, info) => node}` is invoked per each operation on the DOM.
+   * This can be useful to represent node through wrappers, whenever that is needed.
+   * @param info
+   * `1` when the item/node is being appended
+   * `0` when the item/node is being used as insert _before_ reference
+   * `-0` when the item/node is being used as insert _after_ reference
+   * `-1` when the item/node is being removed
+   */
+  node: (generic: Node, info: -1 | -0 | 0 | 1) => Node;
+}
+
+/**
+ * A vDOM-less implementation of the [petit-dom](https://github.com/yelouafi/petit-dom) diffing logic
+ * that will mutate child nodes the first argument - parentNode
+ * @param parentNode Where changes happen
+ * @param currentNodes Array of current items / nodes
+ * @param futureNodes Array of future items / nodes
+ */
+export default function domdiff(
+  parentNode: Node,
+  currentNodes: ArrayLike,
+  futureNodes: ArrayLike,
+  options?: IDomDiffNodeMarkerOptions | IDomDiffOptionsGenericComparisonFn | IDomDiffOPtionsEachNodeCallbackFn
+): void;

From 8b8c78172e5f09089b909311e34f7256fbe6a299 Mon Sep 17 00:00:00 2001
From: "bigopon.777@gmail.com" 
Date: Sat, 15 Sep 2018 08:10:32 +1000
Subject: [PATCH 39/71] fix(typings): adjust description / typings

---
 types.d.ts | 27 +++++++++++++++++----------
 1 file changed, 17 insertions(+), 10 deletions(-)

diff --git a/types.d.ts b/types.d.ts
index fb1ebf8..2fb81df 100644
--- a/types.d.ts
+++ b/types.d.ts
@@ -1,17 +1,24 @@
-export interface IDomDiffNodeMarkerOptions {
-  before: Node;
+export interface IDomDiffNodeMarkerOptions {
+  /**
+   * A specific live node to use as boundary for all nodes operations.
+   * With live nodes [a,d] and {before: d}, the operation [] => [b, c]
+   * would place nodes right before d, resulting a live collection of [a, b, c, d].
+   * 
+   * `before` doesn't necessarily have to be a node
+   */
+  before: T;
 }
 
 export interface IDomDiffOptionsGenericComparisonFn {
   /**
-   * A callback to compare between two generic nodes. returns `true` to indicate they are the same
+   * A callback to compare between two generic objects, each could be a node or anything. returns `true` to indicate they are the same
    */
-  compare: (currentNode: Node, futureNode: Node) => boolean;
+  compare: (currentNode: T1, futureNode: T2) => boolean;
 }
 
 export interface IDomDiffOPtionsEachNodeCallbackFn {
   /**
-   * The optional `{node: (generic, info) => node}` is invoked per each operation on the DOM.
+   * The optional function is invoked per each operation on the list of current"Nodes".
    * This can be useful to represent node through wrappers, whenever that is needed.
    * @param info
    * `1` when the item/node is being appended
@@ -19,19 +26,19 @@ export interface IDomDiffOPtionsEachNodeCallbackFn {
    * `-0` when the item/node is being used as insert _after_ reference
    * `-1` when the item/node is being removed
    */
-  node: (generic: Node, info: -1 | -0 | 0 | 1) => Node;
+  node: (generic: T, info: -1 | -0 | 0 | 1) => Node;
 }
 
 /**
  * A vDOM-less implementation of the [petit-dom](https://github.com/yelouafi/petit-dom) diffing logic
  * that will mutate child nodes the first argument - parentNode
  * @param parentNode Where changes happen
- * @param currentNodes Array of current items / nodes
+ * @param currentNodes Array of current items / nodes.
  * @param futureNodes Array of future items / nodes
  */
-export default function domdiff(
+export default function domdiff(
   parentNode: Node,
-  currentNodes: ArrayLike,
-  futureNodes: ArrayLike,
+  currentNodes: TCurrentItems,
+  futureNodes: TFutureItems,
   options?: IDomDiffNodeMarkerOptions | IDomDiffOptionsGenericComparisonFn | IDomDiffOPtionsEachNodeCallbackFn
 ): void;

From 581723615b825c2c57982e36bd6c2ebdfde6a165 Mon Sep 17 00:00:00 2001
From: Andrea Giammarchi 
Date: Thu, 4 Oct 2018 10:11:01 +0200
Subject: [PATCH 40/71] Update README.md

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 5482acc..20a28c4 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 [![donate](https://img.shields.io/badge/$-donate-ff69b4.svg?maxAge=2592000&style=flat)](https://github.com/WebReflection/donate) [![Coverage Status](https://coveralls.io/repos/github/WebReflection/domdiff/badge.svg?branch=master)](https://coveralls.io/github/WebReflection/domdiff?branch=master) [![Build Status](https://travis-ci.org/WebReflection/domdiff.svg?branch=master)](https://travis-ci.org/WebReflection/domdiff) [![License: ISC](https://img.shields.io/badge/License-ISC-yellow.svg)](https://opensource.org/licenses/ISC)
 
 
-A vDOM-less implementation of the [petit-dom](https://github.com/yelouafi/petit-dom) diffing logic.
+A vDOM-less implementation of the [petit-dom](https://github.com/yelouafi/petit-dom) diffing logic, ad the core of [hyperHTML](https://github.com/WebReflection/hyperHTML).
 
 
 ### V2 breaking change

From 4aaed6da341b4a22504298e7531c96bd7620f65e Mon Sep 17 00:00:00 2001
From: Andrea Giammarchi 
Date: Thu, 4 Oct 2018 10:11:16 +0200
Subject: [PATCH 41/71] Update README.md

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 20a28c4..9e8e8cd 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 [![donate](https://img.shields.io/badge/$-donate-ff69b4.svg?maxAge=2592000&style=flat)](https://github.com/WebReflection/donate) [![Coverage Status](https://coveralls.io/repos/github/WebReflection/domdiff/badge.svg?branch=master)](https://coveralls.io/github/WebReflection/domdiff?branch=master) [![Build Status](https://travis-ci.org/WebReflection/domdiff.svg?branch=master)](https://travis-ci.org/WebReflection/domdiff) [![License: ISC](https://img.shields.io/badge/License-ISC-yellow.svg)](https://opensource.org/licenses/ISC)
 
 
-A vDOM-less implementation of the [petit-dom](https://github.com/yelouafi/petit-dom) diffing logic, ad the core of [hyperHTML](https://github.com/WebReflection/hyperHTML).
+A vDOM-less implementation of the [petit-dom](https://github.com/yelouafi/petit-dom) diffing logic, at the core of [hyperHTML](https://github.com/WebReflection/hyperHTML).
 
 
 ### V2 breaking change

From 9420594da79e047ebe2eef9e482cb6f6024c0dbc Mon Sep 17 00:00:00 2001
From: Andrea Giammarchi 
Date: Thu, 4 Oct 2018 10:19:16 +0200
Subject: [PATCH 42/71] dropped a lonely var

---
 cjs/utils.js                           |  2 +-
 coverage/coverage.json                 |  2 +-
 coverage/lcov-report/cjs/index.html    |  2 +-
 coverage/lcov-report/cjs/index.js.html |  2 +-
 coverage/lcov-report/cjs/utils.js.html | 76 ++++++++++-----------
 coverage/lcov-report/index.html        |  2 +-
 coverage/lcov.info                     | 94 +++++++++++++-------------
 esm/utils.js                           |  2 +-
 8 files changed, 91 insertions(+), 91 deletions(-)

diff --git a/cjs/utils.js b/cjs/utils.js
index b9f7cc4..5218aec 100644
--- a/cjs/utils.js
+++ b/cjs/utils.js
@@ -338,7 +338,7 @@ const findK = (ktr, length, j) => {
   let lo = 1;
   let hi = length;
   while (lo < hi) {
-    var mid = ((lo + hi) / 2) >>> 0;
+    const mid = ((lo + hi) / 2) >>> 0;
     if (j < ktr[mid])
       hi = mid;
     else
diff --git a/coverage/coverage.json b/coverage/coverage.json
index d6fe3a3..3e2dd94 100644
--- a/coverage/coverage.json
+++ b/coverage/coverage.json
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index a82bece..3371249 100644
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diff --git a/esm/utils.js b/esm/utils.js
index f4f8494..da00772 100644
--- a/esm/utils.js
+++ b/esm/utils.js
@@ -330,7 +330,7 @@ const findK = (ktr, length, j) => {
   let lo = 1;
   let hi = length;
   while (lo < hi) {
-    var mid = ((lo + hi) / 2) >>> 0;
+    const mid = ((lo + hi) / 2) >>> 0;
     if (j < ktr[mid])
       hi = mid;
     else

From f8edeab4c26cfbf54f3b239cef13b3a8be7c437d Mon Sep 17 00:00:00 2001
From: Andrea Giammarchi 
Date: Thu, 22 Nov 2018 08:39:45 +0100
Subject: [PATCH 43/71] Fix #10 - Poorlyfilled Rel not Reliable"

---
 cjs/utils.js                               |   10 +-
 coverage/coverage.json                     |    1 -
 coverage/lcov-report/base.css              |  213 ----
 coverage/lcov-report/cjs/index.html        |  110 --
 coverage/lcov-report/cjs/index.js.html     |  731 ------------
 coverage/lcov-report/cjs/utils.js.html     | 1254 --------------------
 coverage/lcov-report/index.html            |   97 --
 coverage/lcov-report/prettify.css          |    1 -
 coverage/lcov-report/prettify.js           |    1 -
 coverage/lcov-report/sort-arrow-sprite.png |  Bin 209 -> 0 bytes
 coverage/lcov-report/sorter.js             |  158 ---
 coverage/lcov.info                         |  356 ------
 esm/utils.js                               |   10 +-
 index.js                                   |   14 +-
 min.js                                     |    2 +-
 15 files changed, 18 insertions(+), 2940 deletions(-)
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diff --git a/coverage/lcov-report/cjs/index.html b/coverage/lcov-report/cjs/index.html
deleted file mode 100644
index 55497cc..0000000
--- a/coverage/lcov-report/cjs/index.html
+++ /dev/null
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utils.js
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diff --git a/coverage/lcov-report/cjs/index.js.html b/coverage/lcov-report/cjs/index.js.html
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'use strict';
-/*! (c) 2018 Andrea Giammarchi (ISC) */
- 
-const {
-  eqeq, identity, indexOf, isReversed, next, append, remove, smartDiff
-} = require('./utils.js');
- 
-const domdiff = (
-  parentNode,     // where changes happen
-  currentNodes,   // Array of current items/nodes
-  futureNodes,    // Array of future items/nodes
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-                  //  before: domNode
-                  //  compare(generic, generic) => true if same generic
-                  //  node(generic) => Node
-) => {
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- 
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- 
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- 
-  let futureEnd = futureNodes.length;
-  let futureStart = 0;
- 
-  // common prefix
-  while (
-    currentStart < currentEnd &&
-    futureStart < futureEnd &&
-    compare(currentNodes[currentStart], futureNodes[futureStart])
-  ) {
-    currentStart++;
-    futureStart++;
-  }
- 
-  // common suffix
-  while (
-    currentStart < currentEnd &&
-    futureStart < futureEnd &&
-    compare(currentNodes[currentEnd - 1], futureNodes[futureEnd - 1])
-  ) {
-    currentEnd--;
-    futureEnd--;
-  }
- 
-  const currentSame = currentStart === currentEnd;
-  const futureSame = futureStart === futureEnd;
- 
-  // same list
-  if (currentSame && futureSame)
-    return futureNodes;
- 
-  // only stuff to add
-  if (currentSame && futureStart < futureEnd) {
-    append(
-      get,
-      parentNode,
-      futureNodes,
-      futureStart,
-      futureEnd,
-      next(get, currentNodes, currentStart, currentLength, before)
-    );
-    return futureNodes;
-  }
- 
-  // only stuff to remove
-  if (futureSame && currentStart < currentEnd) {
-    remove(
-      get,
-      parentNode,
-      currentNodes,
-      currentStart,
-      currentEnd
-    );
-    return futureNodes;
-  }
- 
-  const currentChanges = currentEnd - currentStart;
-  const futureChanges = futureEnd - futureStart;
-  let i = -1;
- 
-  // 2 simple indels: the shortest sequence is a subsequence of the longest
-  if (currentChanges < futureChanges) {
-    i = indexOf(
-      futureNodes,
-      futureStart,
-      futureEnd,
-      currentNodes,
-      currentStart,
-      currentEnd,
-      compare
-    );
-    // inner diff
-    if (-1 < i) {
-      append(
-        get,
-        parentNode,
-        futureNodes,
-        futureStart,
-        i,
-        get(currentNodes[currentStart], 0)
-      );
-      append(
-        get,
-        parentNode,
-        futureNodes,
-        i + currentChanges,
-        futureEnd,
-        next(get, currentNodes, currentEnd, currentLength, before)
-      );
-      return futureNodes;
-    }
-  }
-  /* istanbul ignore else */
-  else if (futureChanges < currentChanges) {
-    i = indexOf(
-      currentNodes,
-      currentStart,
-      currentEnd,
-      futureNodes,
-      futureStart,
-      futureEnd,
-      compare
-    );
-    // outer diff
-    if (-1 < i) {
-      remove(
-        get,
-        parentNode,
-        currentNodes,
-        currentStart,
-        i
-      );
-      remove(
-        get,
-        parentNode,
-        currentNodes,
-        i + futureChanges,
-        currentEnd
-      );
-      return futureNodes;
-    }
-  }
- 
-  // common case with one replacement for many nodes
-  // or many nodes replaced for a single one
-  /* istanbul ignore else */
-  if ((currentChanges < 2 || futureChanges < 2)) {
-    append(
-      get,
-      parentNode,
-      futureNodes,
-      futureStart,
-      futureEnd,
-      get(currentNodes[currentStart], 0)
-    );
-    remove(
-      get,
-      parentNode,
-      currentNodes,
-      currentStart,
-      currentEnd
-    );
-    return futureNodes;
-  }
- 
-  // the half match diff part has been skipped in petit-dom
-  // https://github.com/yelouafi/petit-dom/blob/bd6f5c919b5ae5297be01612c524c40be45f14a7/src/vdom.js#L391-L397
-  // accordingly, I think it's safe to skip in here too
-  // if one day it'll come out like the speediest thing ever to do
-  // then I might add it in here too
- 
-  // Extra: before going too fancy, what about reversed lists ?
-  //        This should bail out pretty quickly if that's not the case.
-  if (
-    currentChanges === futureChanges &&
-    isReversed(
-      futureNodes,
-      futureEnd,
-      currentNodes,
-      currentStart,
-      currentEnd,
-      compare
-    )
-  ) {
-    append(
-      get,
-      parentNode,
-      futureNodes,
-      futureStart,
-      futureEnd,
-      next(get, currentNodes, currentEnd, currentLength, before)
-    );
-    return futureNodes;
-  }
- 
-  // last resort through a smart diff
-  smartDiff(
-    get,
-    parentNode,
-    futureNodes,
-    futureStart,
-    futureEnd,
-    futureChanges,
-    currentNodes,
-    currentStart,
-    currentEnd,
-    currentChanges,
-    currentLength,
-    compare,
-    before
-  );
- 
-  return futureNodes;
-};
- 
-Object.defineProperty(exports, '__esModule', {value: true}).default = domdiff;
- 

-

-

-

-  Code coverage
-  generated by istanbul at Thu Oct 04 2018 10:19:00 GMT+0200 (CEST)
-

-
-
-
-
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diff --git a/coverage/lcov-report/cjs/utils.js.html b/coverage/lcov-report/cjs/utils.js.html
deleted file mode 100644
index 3371249..0000000
--- a/coverage/lcov-report/cjs/utils.js.html
+++ /dev/null
@@ -1,1254 +0,0 @@
-
-
-
-    Code coverage report for cjs/utils.js
-    
-    
-    
-    
-    
-
-
-

-  

-    

-      all files / cjs/ utils.js
-    

-    

-      

-        100% 
-        Statements
-        178/178
-      

-      

-        100% 
-        Branches
-        68/68
-      

-      

-        100% 
-        Functions
-        1/1
-      

-      

-        100% 
-        Lines
-        173/173
-      

-      

-        7 statements, 1 function, 7 branches
-        Ignored      
-      

-    

-  

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-1059×
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-2655×
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-1000×
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-1×
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-51×
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- 
- 
- 
- 
- 
- 
- 
- 
- 
- 
- 
- 
- 
- 
- 
- 
- 
- 
- 
- 
- 
- 
- 
-1×
- 
'use strict';
-const append = (get, parent, children, start, end, before) => {
-  if ((end - start) < 2)
-    parent.insertBefore(get(children[start], 1), before);
-  else {
-    const fragment = parent.ownerDocument.createDocumentFragment();
-    while (start < end)
-      fragment.appendChild(get(children[start++], 1));
-    parent.insertBefore(fragment, before);
-  }
-};
-exports.append = append;
- 
-const eqeq = (a, b) => a == b;
-exports.eqeq = eqeq;
- 
-const identity = O => O;
-exports.identity = identity;
- 
-const indexOf = (
-  moreNodes,
-  moreStart,
-  moreEnd,
-  lessNodes,
-  lessStart,
-  lessEnd,
-  compare
-) => {
-  const length = lessEnd - lessStart;
-  /* istanbul ignore if */
-  Iif (length < 1)
-    return -1;
-  while ((moreEnd - moreStart) >= length) {
-    let m = moreStart;
-    let l = lessStart;
-    while (
-      m < moreEnd &&
-      l < lessEnd &&
-      compare(moreNodes[m], lessNodes[l])
-    ) {
-      m++;
-      l++;
-    }
-    if (l === lessEnd)
-      return moreStart;
-    moreStart = m + 1;
-  }
-  return -1;
-};
-exports.indexOf = indexOf;
- 
-const isReversed = (
-  futureNodes,
-  futureEnd,
-  currentNodes,
-  currentStart,
-  currentEnd,
-  compare
-) => {
-  while (
-    currentStart < currentEnd &&
-    compare(
-      currentNodes[currentStart],
-      futureNodes[futureEnd - 1]
-    )) {
-      currentStart++;
-      futureEnd--;
-    };
-  return futureEnd === 0;
-};
-exports.isReversed = isReversed;
- 
-const next = (get, list, i, length, before) => i < length ?
-              get(list[i], 0) :
-              (0 < i ?
-                get(list[i - 1], -0).nextSibling :
-                before);
-exports.next = next;
- 
-const remove = (get, parent, children, start, end) => {
-  if ((end - start) < 2)
-    parent.removeChild(get(children[start], -1));
-  else {
-    const range = parent.ownerDocument.createRange();
-    range.setStartBefore(get(children[start], -1));
-    range.setEndAfter(get(children[end - 1], -1));
-    range.deleteContents();
-  }
-};
-exports.remove = remove;
- 
-// - - - - - - - - - - - - - - - - - - -
-// diff related constants and utilities
-// - - - - - - - - - - - - - - - - - - -
- 
-const DELETION = -1;
-const INSERTION = 1;
-const SKIP = 0;
-const SKIP_OND = 50;
- 
-/* istanbul ignore next */
-const Rel = typeof Map === 'undefined' ?
-  function () {
-    const k = [], v = [];
-    return {
-      has: value => -1 < k.indexOf(value),
-      get: value => v[k.indexOf(value)],
-      set: value => {
-        const i = k.indexOf(value);
-        v[i < 0 ? (k.push(value) - 1) : i] = value;
-      }
-    };
-  } :
-  Map
-;
- 
-const HS = (
-  futureNodes,
-  futureStart,
-  futureEnd,
-  futureChanges,
-  currentNodes,
-  currentStart,
-  currentEnd,
-  currentChanges
-) => {
- 
-  let k = 0;
-  /* istanbul ignore next */
-  let minLen = futureChanges < currentChanges ? futureChanges : currentChanges;
-  const link = Array(minLen++);
-  const tresh = Array(minLen);
-  tresh[0] = -1;
- 
-  for (let i = 1; i < minLen; i++)
-    tresh[i] = currentEnd;
- 
-  const keymap = new Rel;
-  for (let i = currentStart; i < currentEnd; i++)
-    keymap.set(currentNodes[i], i);
- 
-  for (let i = futureStart; i < futureEnd; i++) {
-    const idxInOld = keymap.get(futureNodes[i]);
-    if (idxInOld != null) {
-      k = findK(tresh, minLen, idxInOld);
-      /* istanbul ignore else */
-      Eif (-1 < k) {
-        tresh[k] = idxInOld;
-        link[k] = {
-          newi: i,
-          oldi: idxInOld,
-          prev: link[k - 1]
-        };
-      }
-    }
-  }
- 
-  k = --minLen;
-  --currentEnd;
-  while (tresh[k] > currentEnd) --k;
- 
-  minLen = currentChanges + futureChanges - k;
-  const diff = Array(minLen);
-  let ptr = link[k];
-  --futureEnd;
-  while (ptr) {
-    const {newi, oldi} = ptr;
-    while (futureEnd > newi) {
-      diff[--minLen] = INSERTION;
-      --futureEnd;
-    }
-    while (currentEnd > oldi) {
-      diff[--minLen] = DELETION;
-      --currentEnd;
-    }
-    diff[--minLen] = SKIP;
-    --futureEnd;
-    --currentEnd;
-    ptr = ptr.prev;
-  }
-  while (futureEnd >= futureStart) {
-    diff[--minLen] = INSERTION;
-    --futureEnd;
-  }
-  while (currentEnd >= currentStart) {
-    diff[--minLen] = DELETION;
-    --currentEnd;
-  }
-  return diff;
-};
- 
-// this is pretty much the same petit-dom code without the delete map part
-// https://github.com/yelouafi/petit-dom/blob/bd6f5c919b5ae5297be01612c524c40be45f14a7/src/vdom.js#L556-L561
-const OND = (
-  futureNodes,
-  futureStart,
-  rows,
-  currentNodes,
-  currentStart,
-  cols,
-  compare
-) => {
-  const length = rows + cols;
-  const v = [];
-  let d, k, r, c, pv, cv, pd;
-  outer: for (d = 0; d <= length; d++) {
-    /* istanbul ignore if */
-    if (d > SKIP_OND)
-      return null;
-    pd = d - 1;
-    /* istanbul ignore next */
-    pv = d ? v[d - 1] : [0, 0];
-    cv = v[d] = [];
-    for (k = -d; k <= d; k += 2) {
-      if (k === -d || (k !== d && pv[pd + k - 1] < pv[pd + k + 1])) {
-        c = pv[pd + k + 1];
-      } else {
-        c = pv[pd + k - 1] + 1;
-      }
-      r = c - k;
-      while (
-        c < cols &&
-        r < rows &&
-        compare(
-          currentNodes[currentStart + c],
-          futureNodes[futureStart + r]
-        )
-      ) {
-        c++;
-        r++;
-      }
-      if (c === cols && r === rows) {
-        break outer;
-      }
-      cv[d + k] = c;
-    }
-  }
- 
-  const diff = Array(d / 2 + length / 2);
-  let diffIdx = diff.length - 1;
-  for (d = v.length - 1; d >= 0; d--) {
-    while (
-      c > 0 &&
-      r > 0 &&
-      compare(
-        currentNodes[currentStart + c - 1],
-        futureNodes[futureStart + r - 1]
-      )
-    ) {
-      // diagonal edge = equality
-      diff[diffIdx--] = SKIP;
-      c--;
-      r--;
-    }
-    if (!d)
-      break;
-    pd = d - 1;
-    /* istanbul ignore next */
-    pv = d ? v[d - 1] : [0, 0];
-    k = c - r;
-    if (k === -d || (k !== d && pv[pd + k - 1] < pv[pd + k + 1])) {
-      // vertical edge = insertion
-      r--;
-      diff[diffIdx--] = INSERTION;
-    } else {
-      // horizontal edge = deletion
-      c--;
-      diff[diffIdx--] = DELETION;
-    }
-  }
-  return diff;
-};
- 
-const applyDiff = (
-  diff,
-  get,
-  parentNode,
-  futureNodes,
-  futureStart,
-  currentNodes,
-  currentStart,
-  currentLength,
-  before
-) => {
-  const live = new Rel;
-  const length = diff.length;
-  let currentIndex = currentStart;
-  let i = 0;
-  while (i < length) {
-    switch (diff[i++]) {
-      case SKIP:
-        futureStart++;
-        currentIndex++;
-        break;
-      case INSERTION:
-        // TODO: bulk appends for sequential nodes
-        live.set(futureNodes[futureStart], 1);
-        append(
-          get,
-          parentNode,
-          futureNodes,
-          futureStart++,
-          futureStart,
-          currentIndex < currentLength ?
-            get(currentNodes[currentIndex], 1) :
-            before
-        );
-        break;
-      case DELETION:
-        currentIndex++;
-        break;
-    }
-  }
-  i = 0;
-  while (i < length) {
-    switch (diff[i++]) {
-      case SKIP:
-        currentStart++;
-        break;
-      case DELETION:
-        // TODO: bulk removes for sequential nodes
-        if (live.has(currentNodes[currentStart]))
-          currentStart++;
-        else
-          remove(
-            get,
-            parentNode,
-            currentNodes,
-            currentStart++,
-            currentStart
-          );
-        break;
-    }
-  }
-};
- 
-const findK = (ktr, length, j) => {
-  let lo = 1;
-  let hi = length;
-  while (lo < hi) {
-    const mid = ((lo + hi) / 2) >>> 0;
-    if (j < ktr[mid])
-      hi = mid;
-    else
-      lo = mid + 1;
-  }
-  return lo;
-}
- 
-const smartDiff = (
-  get,
-  parentNode,
-  futureNodes,
-  futureStart,
-  futureEnd,
-  futureChanges,
-  currentNodes,
-  currentStart,
-  currentEnd,
-  currentChanges,
-  currentLength,
-  compare,
-  before
-) => {
-  applyDiff(
-    OND(
-      futureNodes,
-      futureStart,
-      futureChanges,
-      currentNodes,
-      currentStart,
-      currentChanges,
-      compare
-    ) ||
-    HS(
-      futureNodes,
-      futureStart,
-      futureEnd,
-      futureChanges,
-      currentNodes,
-      currentStart,
-      currentEnd,
-      currentChanges
-    ),
-    get,
-    parentNode,
-    futureNodes,
-    futureStart,
-    currentNodes,
-    currentStart,
-    currentLength,
-    before
-  );
-};
-exports.smartDiff = smartDiff;
- 

-

-

-

-  Code coverage
-  generated by istanbul at Thu Oct 04 2018 10:19:00 GMT+0200 (CEST)
-

-
-
-
-
-
-
diff --git a/coverage/lcov-report/index.html b/coverage/lcov-report/index.html
deleted file mode 100644
index 87f852f..0000000
--- a/coverage/lcov-report/index.html
+++ /dev/null
@@ -1,97 +0,0 @@
-
-
-
-    Code coverage report for All files
-    
-    
-    
-    
-    
-
-
-

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-    

-      

-        100% 
-        Statements
-        231/231
-      

-      

-        100% 
-        Branches
-        110/110
-      

-      

-        100% 
-        Functions
-        1/1
-      

-      

-        100% 
-        Lines
-        226/226
-      

-      

-        7 statements, 1 function, 7 branches
-        Ignored      
-      

-    

-  

-  

-

-
-
-
-   
-   
-   
-   
-   
-   
-   
-   
-   
-   
-
-
-
-	
-	
-	
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-	
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-	
-	
-	
-	
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-
FileStatementsBranchesFunctionsLines
cjs/
100%231/231100%110/110100%1/1100%226/226

-

-

-

-  Code coverage
-  generated by istanbul at Thu Oct 04 2018 10:19:00 GMT+0200 (CEST)
-

-
-
-
-
-
-
diff --git a/coverage/lcov-report/prettify.css b/coverage/lcov-report/prettify.css
deleted file mode 100644
index b317a7c..0000000
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+++ /dev/null
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diff --git a/coverage/lcov-report/prettify.js b/coverage/lcov-report/prettify.js
deleted file mode 100644
index ef51e03..0000000
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-BRDA:81,8,0,67
-BRDA:81,8,1,20
-BRDA:102,9,0,0
-BRDA:102,9,1,1
-BRDA:110,10,0,0
-BRDA:110,10,1,0
-BRDA:130,11,0,0
-BRDA:130,11,1,2
-BRDA:144,12,0,1000
-BRDA:144,12,1,1000
-BRDA:147,13,0,1000
-BRDA:147,13,1,0
-BRDA:208,14,0,2
-BRDA:208,14,1,370
-BRDA:212,15,0,319
-BRDA:212,15,1,51
-BRDA:215,16,0,3237
-BRDA:215,16,1,311
-BRDA:215,17,0,3548
-BRDA:215,17,1,3178
-BRDA:215,17,2,2908
-BRDA:222,18,0,3701
-BRDA:222,18,1,2452
-BRDA:222,18,2,2189
-BRDA:232,19,0,49
-BRDA:232,19,1,3499
-BRDA:232,20,0,3548
-BRDA:232,20,1,192
-BRDA:243,21,0,361
-BRDA:243,21,1,300
-BRDA:243,21,2,231
-BRDA:255,22,0,49
-BRDA:255,22,1,219
-BRDA:259,23,0,219
-BRDA:259,23,1,0
-BRDA:261,24,0,112
-BRDA:261,24,1,107
-BRDA:261,25,0,219
-BRDA:261,25,1,207
-BRDA:261,25,2,125
-BRDA:290,26,0,147
-BRDA:290,26,1,2058
-BRDA:290,26,2,1059
-BRDA:304,27,0,950
-BRDA:304,27,1,1108
-BRDA:316,28,0,147
-BRDA:316,28,1,1059
-BRDA:322,29,0,1008
-BRDA:322,29,1,51
-BRDA:342,30,0,7345
-BRDA:342,30,1,2655
-BRDA:366,31,0,51
-BRDA:366,31,1,2
-BRF:68
-BRH:68
-end_of_record
diff --git a/esm/utils.js b/esm/utils.js
index da00772..b38729d 100644
--- a/esm/utils.js
+++ b/esm/utils.js
@@ -95,11 +95,11 @@ const Rel = typeof Map === 'undefined' ?
   function () {
     const k = [], v = [];
     return {
-      has: value => -1 < k.indexOf(value),
-      get: value => v[k.indexOf(value)],
-      set: value => {
-        const i = k.indexOf(value);
-        v[i < 0 ? (k.push(value) - 1) : i] = value;
+      has: key => -1 < k.indexOf(key),
+      get: key => v[k.indexOf(key)],
+      set: (key, value) => {
+        const i = k.indexOf(key);
+        v[i < 0 ? (k.push(key) - 1) : i] = value;
       }
     };
   } :
diff --git a/index.js b/index.js
index 2546894..71a3e1a 100644
--- a/index.js
+++ b/index.js
@@ -70,15 +70,15 @@ var Rel = typeof Map === 'undefined' ? function () {
   var k = [],
       v = [];
   return {
-    has: function has(value) {
-      return -1 < k.indexOf(value);
+    has: function has(key) {
+      return -1 < k.indexOf(key);
     },
-    get: function get(value) {
-      return v[k.indexOf(value)];
+    get: function get(key) {
+      return v[k.indexOf(key)];
     },
-    set: function set(value) {
-      var i = k.indexOf(value);
-      v[i < 0 ? k.push(value) - 1 : i] = value;
+    set: function set(key, value) {
+      var i = k.indexOf(key);
+      v[i < 0 ? k.push(key) - 1 : i] = value;
     }
   };
 } : Map;
diff --git a/min.js b/min.js
index a401580..248fd04 100644
--- a/min.js
+++ b/min.js
@@ -1 +1 @@
-var domdiff=function(){"use strict";var r=function(r,e,n,t,f,o){if(f-t<2)e.insertBefore(r(n[t],1),o);else{for(var i=e.ownerDocument.createDocumentFragment();t=u;){for(var a=e,v=f;ai;)--v;c=a+t-v;var m=Array(c),k=d[v];for(--n;k;){for(var y=k,A=y.newi,x=y.oldi;n>A;)m[--c]=1,--n;for(;i>x;)m[--c]=-1,--i;m[--c]=0,--n,--i,k=k.prev}for(;n>=e;)m[--c]=1,--n;for(;i>=o;)m[--c]=-1,--i;return m},v=function(r,e,n,t,f,o,i){var u=n+o,a=[],v=void 0,c=void 0,s=void 0,d=void 0,l=void 0,h=void 0,g=void 0;r:for(v=0;v<=u;v++){if(v>50)return null;for(g=v-1,l=v?a[v-1]:[0,0],h=a[v]=[],c=-v;c<=v;c+=2){for(d=c===-v||c!==v&&l[g+c-1]=0;v--){for(;d>0&&s>0&&i(t[f+d-1],r[e+s-1]);)p[b--]=0,d--,s--;if(!v)break;g=v-1,l=v?a[v-1]:[0,0],c=d-s,c===-v||c!==v&&l[g+c-1]>>0;n=u;){for(var a=e,v=f;ai;)--v;c=a+t-v;var m=Array(c),k=d[v];for(--n;k;){for(var y=k,A=y.newi,x=y.oldi;n>A;)m[--c]=1,--n;for(;i>x;)m[--c]=-1,--i;m[--c]=0,--n,--i,k=k.prev}for(;n>=e;)m[--c]=1,--n;for(;i>=o;)m[--c]=-1,--i;return m},v=function(r,e,n,t,f,o,i){var u=n+o,a=[],v=void 0,c=void 0,s=void 0,d=void 0,l=void 0,h=void 0,g=void 0;r:for(v=0;v<=u;v++){if(v>50)return null;for(g=v-1,l=v?a[v-1]:[0,0],h=a[v]=[],c=-v;c<=v;c+=2){for(d=c===-v||c!==v&&l[g+c-1]=0;v--){for(;d>0&&s>0&&i(t[f+d-1],r[e+s-1]);)p[b--]=0,d--,s--;if(!v)break;g=v-1,l=v?a[v-1]:[0,0],c=d-s,c===-v||c!==v&&l[g+c-1]>>0;n
Date: Thu, 22 Nov 2018 08:40:05 +0100
Subject: [PATCH 44/71] removed coverage from the repo

---
 .gitignore | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.gitignore b/.gitignore
index 58b805f..2f9bd06 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 .DS_Store
-node_modules/
\ No newline at end of file
+node_modules/
+coverage/
\ No newline at end of file

From 08fc7fa2ea4268719272a2f3fb5c721e4c542272 Mon Sep 17 00:00:00 2001
From: Andrea Giammarchi 
Date: Thu, 22 Nov 2018 08:40:17 +0100
Subject: [PATCH 45/71] 1.0.2

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 0ab404b..39321e3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "domdiff",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 0967cfc..4108ba3 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "domdiff",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "description": "A fast and simple way to diff childNodes",
   "unpkg": "min.js",
   "main": "cjs/index.js",

From 6c1003c4ea768c3ae369b442f7859e4a83f76544 Mon Sep 17 00:00:00 2001
From: Andrea Giammarchi 
Date: Thu, 22 Nov 2018 08:46:48 +0100
Subject: [PATCH 46/71] publishing v2

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 4108ba3..1af4426 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "domdiff",
-  "version": "1.0.2",
+  "version": "2.0.0",
   "description": "A fast and simple way to diff childNodes",
   "unpkg": "min.js",
   "main": "cjs/index.js",

From f9e767a7e3cfbdd4adcd0114fd477e0bf2bff44f Mon Sep 17 00:00:00 2001
From: Andrea Giammarchi 
Date: Thu, 22 Nov 2018 08:46:51 +0100
Subject: [PATCH 47/71] 2.0.1

---
 package-lock.json | 2 +-
 package.json      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 39321e3..447477b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "domdiff",
-  "version": "1.0.2",
+  "version": "2.0.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 1af4426..6137469 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "domdiff",
-  "version": "2.0.0",
+  "version": "2.0.1",
   "description": "A fast and simple way to diff childNodes",
   "unpkg": "min.js",
   "main": "cjs/index.js",

From 5783a192cc48afed2c13c94184ffc5c1639500cf Mon Sep 17 00:00:00 2001
From: Andrea Giammarchi 
Date: Thu, 22 Nov 2018 18:43:05 +0100
Subject: [PATCH 48/71] Refactoring out most common dependencies

---
 cjs/utils.js      | 22 ++++--------------
 esm/utils.js      | 22 ++++--------------
 index.js          | 59 +++++++++++++++++++++++++++++++----------------
 min.js            |  3 ++-
 package-lock.json | 28 ++++++++++++++++++++++
 package.json      |  7 ++++--
 rollup.config.js  |  6 +++++
 7 files changed, 88 insertions(+), 59 deletions(-)

diff --git a/cjs/utils.js b/cjs/utils.js
index e639e4c..487f8b6 100644
--- a/cjs/utils.js
+++ b/cjs/utils.js
@@ -1,4 +1,6 @@
 'use strict';
+const Map = (require('@ungap/essential-map'));
+
 const append = (get, parent, children, start, end, before) => {
   if ((end - start) < 2)
     parent.insertBefore(get(children[start], 1), before);
@@ -98,22 +100,6 @@ const INSERTION = 1;
 const SKIP = 0;
 const SKIP_OND = 50;
 
-/* istanbul ignore next */
-const Rel = typeof Map === 'undefined' ?
-  function () {
-    const k = [], v = [];
-    return {
-      has: key => -1 < k.indexOf(key),
-      get: key => v[k.indexOf(key)],
-      set: (key, value) => {
-        const i = k.indexOf(key);
-        v[i < 0 ? (k.push(key) - 1) : i] = value;
-      }
-    };
-  } :
-  Map
-;
-
 const HS = (
   futureNodes,
   futureStart,
@@ -135,7 +121,7 @@ const HS = (
   for (let i = 1; i < minLen; i++)
     tresh[i] = currentEnd;
 
-  const keymap = new Rel;
+  const keymap = new Map;
   for (let i = currentStart; i < currentEnd; i++)
     keymap.set(currentNodes[i], i);
 
@@ -282,7 +268,7 @@ const applyDiff = (
   currentLength,
   before
 ) => {
-  const live = new Rel;
+  const live = new Map;
   const length = diff.length;
   let currentIndex = currentStart;
   let i = 0;
diff --git a/esm/utils.js b/esm/utils.js
index b38729d..e720627 100644
--- a/esm/utils.js
+++ b/esm/utils.js
@@ -1,3 +1,5 @@
+import Map from '@ungap/essential-map';
+
 export const append = (get, parent, children, start, end, before) => {
   if ((end - start) < 2)
     parent.insertBefore(get(children[start], 1), before);
@@ -90,22 +92,6 @@ const INSERTION = 1;
 const SKIP = 0;
 const SKIP_OND = 50;
 
-/* istanbul ignore next */
-const Rel = typeof Map === 'undefined' ?
-  function () {
-    const k = [], v = [];
-    return {
-      has: key => -1 < k.indexOf(key),
-      get: key => v[k.indexOf(key)],
-      set: (key, value) => {
-        const i = k.indexOf(key);
-        v[i < 0 ? (k.push(key) - 1) : i] = value;
-      }
-    };
-  } :
-  Map
-;
-
 const HS = (
   futureNodes,
   futureStart,
@@ -127,7 +113,7 @@ const HS = (
   for (let i = 1; i < minLen; i++)
     tresh[i] = currentEnd;
 
-  const keymap = new Rel;
+  const keymap = new Map;
   for (let i = currentStart; i < currentEnd; i++)
     keymap.set(currentNodes[i], i);
 
@@ -274,7 +260,7 @@ const applyDiff = (
   currentLength,
   before
 ) => {
-  const live = new Rel;
+  const live = new Map;
   const length = diff.length;
   let currentIndex = currentStart;
   let i = 0;
diff --git a/index.js b/index.js
index 71a3e1a..3982df7 100644
--- a/index.js
+++ b/index.js
@@ -1,6 +1,43 @@
 var domdiff = (function () {
 'use strict';
 
+/*! (c) Andrea Giammarchi - ISC */
+var window = null || /* istanbul ignore next */{};
+try {
+  window.Map = Map;
+} catch (Map) {
+  window.Map = function Map() {
+    var i = 0;
+    var k = [];
+    var v = [];
+    return {
+      delete: function _delete(key) {
+        var had = contains(key);
+        if (had) {
+          k.splice(i, 1);
+          v.splice(i, 1);
+        }
+        return had;
+      },
+      get: function get(key) {
+        return contains(key) ? v[i] : void 0;
+      },
+      has: function has(key) {
+        return contains(key);
+      },
+      set: function set(key, value) {
+        v[contains(key) ? i : k.push(key) - 1] = value;
+        return this;
+      }
+    };
+    function contains(v) {
+      i = k.indexOf(v);
+      return -1 < i;
+    }
+  };
+}
+var Map$1 = window.Map;
+
 var append = function append(get, parent, children, start, end, before) {
   if (end - start < 2) parent.insertBefore(get(children[start], 1), before);else {
     var fragment = parent.ownerDocument.createDocumentFragment();
@@ -65,24 +102,6 @@ var INSERTION = 1;
 var SKIP = 0;
 var SKIP_OND = 50;
 
-/* istanbul ignore next */
-var Rel = typeof Map === 'undefined' ? function () {
-  var k = [],
-      v = [];
-  return {
-    has: function has(key) {
-      return -1 < k.indexOf(key);
-    },
-    get: function get(key) {
-      return v[k.indexOf(key)];
-    },
-    set: function set(key, value) {
-      var i = k.indexOf(key);
-      v[i < 0 ? k.push(key) - 1 : i] = value;
-    }
-  };
-} : Map;
-
 var HS = function HS(futureNodes, futureStart, futureEnd, futureChanges, currentNodes, currentStart, currentEnd, currentChanges) {
 
   var k = 0;
@@ -94,7 +113,7 @@ var HS = function HS(futureNodes, futureStart, futureEnd, futureChanges, current
 
   for (var i = 1; i < minLen; i++) {
     tresh[i] = currentEnd;
-  }var keymap = new Rel();
+  }var keymap = new Map$1();
   for (var _i = currentStart; _i < currentEnd; _i++) {
     keymap.set(currentNodes[_i], _i);
   }for (var _i2 = futureStart; _i2 < futureEnd; _i2++) {
@@ -215,7 +234,7 @@ var OND = function OND(futureNodes, futureStart, rows, currentNodes, currentStar
 };
 
 var applyDiff = function applyDiff(diff, get, parentNode, futureNodes, futureStart, currentNodes, currentStart, currentLength, before) {
-  var live = new Rel();
+  var live = new Map$1();
   var length = diff.length;
   var currentIndex = currentStart;
   var i = 0;
diff --git a/min.js b/min.js
index 248fd04..3e4aef4 100644
--- a/min.js
+++ b/min.js
@@ -1 +1,2 @@
-var domdiff=function(){"use strict";var r=function(r,e,n,t,f,o){if(f-t<2)e.insertBefore(r(n[t],1),o);else{for(var i=e.ownerDocument.createDocumentFragment();t=u;){for(var a=e,v=f;ai;)--v;c=a+t-v;var m=Array(c),k=d[v];for(--n;k;){for(var y=k,A=y.newi,x=y.oldi;n>A;)m[--c]=1,--n;for(;i>x;)m[--c]=-1,--i;m[--c]=0,--n,--i,k=k.prev}for(;n>=e;)m[--c]=1,--n;for(;i>=o;)m[--c]=-1,--i;return m},v=function(r,e,n,t,f,o,i){var u=n+o,a=[],v=void 0,c=void 0,s=void 0,d=void 0,l=void 0,h=void 0,g=void 0;r:for(v=0;v<=u;v++){if(v>50)return null;for(g=v-1,l=v?a[v-1]:[0,0],h=a[v]=[],c=-v;c<=v;c+=2){for(d=c===-v||c!==v&&l[g+c-1]=0;v--){for(;d>0&&s>0&&i(t[f+d-1],r[e+s-1]);)p[b--]=0,d--,s--;if(!v)break;g=v-1,l=v?a[v-1]:[0,0],c=d-s,c===-v||c!==v&&l[g+c-1]>>0;n=a;){for(var u=e,c=o;ua;)--c;v=u+o-c;var m=Array(v),k=s[c];for(--t;k;){for(var y=k,A=y.newi,M=y.oldi;t>A;)m[--v]=1,--t;for(;a>M;)m[--v]=-1,--a;m[--v]=0,--t,--a,k=k.prev}for(;t>=n;)m[--v]=1,--t;for(;a>=i;)m[--v]=-1,--a;return m},v=function(r,e,n,t,o,f,i){var a=n+f,u=[],c=void 0,v=void 0,s=void 0,l=void 0,d=void 0,h=void 0,p=void 0;r:for(c=0;c<=a;c++){if(c>50)return null;for(p=c-1,d=c?u[c-1]:[0,0],h=u[c]=[],v=-c;v<=c;v+=2){for(l=v===-c||v!==c&&d[p+v-1]=0;c--){for(;l>0&&s>0&&i(t[o+l-1],r[e+s-1]);)g[b--]=0,l--,s--;if(!c)break;p=c-1,d=c?u[c-1]:[0,0],v=l-s,v===-c||v!==c&&d[p+v-1]>>0;n index.js",
-    "cjs": "ascjs ./esm ./cjs",
+    "cjs": "ascjs ./esm ./cjs && sed -i.bck 's/(m => m.__esModule ? m.default : m)//' cjs/utils.js && rm cjs/utils.js.bck",
     "coveralls": "cat ./coverage/lcov.info | coveralls",
     "min": "uglifyjs index.js --support-ie8 --comments=/^!/ -cmo min.js",
     "size": "echo \"gzip: $(cat min.js | gzip -c9 | wc -c)\" && echo \"brotli: $(cat min.js | brotli | wc -c)\" && echo ''",
@@ -41,13 +41,16 @@
     "istanbul": "^0.4.5",
     "rollup": "^0.52.0",
     "rollup-plugin-babel": "^3.0.7",
+    "rollup-plugin-node-resolve": "^3.4.0",
     "tressa": "^0.3.1",
     "uglify-js": "^2.8.29"
   },
   "directories": {
     "test": "test"
   },
-  "dependencies": {},
+  "dependencies": {
+    "@ungap/essential-map": "^0.1.5"
+  },
   "repository": {
     "type": "git",
     "url": "git+https://github.com/WebReflection/domdiff.git"
diff --git a/rollup.config.js b/rollup.config.js
index 5de2f84..1b048e2 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -1,12 +1,18 @@
 import babel from 'rollup-plugin-babel';
+import resolve from 'rollup-plugin-node-resolve';
 
 export default {
   input: 'esm/index.js',
   plugins: [
+    resolve({
+      module: true
+    }),
     babel({
       plugins: require('./babel-plugins.json')
     })
   ],
+  context: 'null',
+  moduleContext: 'null',
   output: {
     exports: 'named',
     file: 'index.js',

From 51e85a59aa64c63c18a8789fe46a1bdc7f644571 Mon Sep 17 00:00:00 2001
From: Andrea Giammarchi 
Date: Fri, 23 Nov 2018 13:47:06 +0100
Subject: [PATCH 49/71] using ungap

---
 .gitignore        |    3 +-
 index.js          |    8 +-
 package-lock.json | 2728 ---------------------------------------------
 package.json      |    2 +-
 4 files changed, 7 insertions(+), 2734 deletions(-)
 delete mode 100644 package-lock.json

diff --git a/.gitignore b/.gitignore
index 2f9bd06..475f26d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 .DS_Store
 node_modules/
-coverage/
\ No newline at end of file
+coverage/
+package-lock.json
diff --git a/index.js b/index.js
index 3982df7..f859604 100644
--- a/index.js
+++ b/index.js
@@ -2,11 +2,11 @@ var domdiff = (function () {
 'use strict';
 
 /*! (c) Andrea Giammarchi - ISC */
-var window = null || /* istanbul ignore next */{};
+var self = null || /* istanbul ignore next */{};
 try {
-  window.Map = Map;
+  self.Map = Map;
 } catch (Map) {
-  window.Map = function Map() {
+  self.Map = function Map() {
     var i = 0;
     var k = [];
     var v = [];
@@ -36,7 +36,7 @@ try {
     }
   };
 }
-var Map$1 = window.Map;
+var Map$1 = self.Map;
 
 var append = function append(get, parent, children, start, end, before) {
   if (end - start < 2) parent.insertBefore(get(children[start], 1), before);else {
diff --git a/package-lock.json b/package-lock.json
deleted file mode 100644
index 8fd64a6..0000000
--- a/package-lock.json
+++ /dev/null
@@ -1,2728 +0,0 @@
-{
-  "name": "domdiff",
-  "version": "2.0.1",
-  "lockfileVersion": 1,
-  "requires": true,
-  "dependencies": {
-    "@ungap/essential-map": {
-      "version": "0.1.5",
-      "resolved": "https://registry.npmjs.org/@ungap/essential-map/-/essential-map-0.1.5.tgz",
-      "integrity": "sha512-Cllbsq52iX9+16tweeQ1qvpM0QZcirqmnlbL4zZ0tmtXTgUdUUvtREjFzTnXEuatR1A6ONszoeLovuECISBBQg=="
-    },
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-      "dev": true,
-      "requires": {
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diff --git a/package.json b/package.json
index 9ba9c4e..8e4d3c5 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
     "test": "test"
   },
   "dependencies": {
-    "@ungap/essential-map": "^0.1.5"
+    "@ungap/essential-map": "^0.1.7"
   },
   "repository": {
     "type": "git",

From 6dd5d5b294ea5af2f8a4d598ec8613aeb1607908 Mon Sep 17 00:00:00 2001
From: Andrea Giammarchi 
Date: Fri, 23 Nov 2018 13:47:09 +0100
Subject: [PATCH 50/71] 2.0.2

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 8e4d3c5..ae7c3ba 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "domdiff",
-  "version": "2.0.1",
+  "version": "2.0.2",
   "description": "A fast and simple way to diff childNodes",
   "unpkg": "min.js",
   "main": "cjs/index.js",

From 580d3f4a301bf38a552dea60ca3795b91cc6406f Mon Sep 17 00:00:00 2001
From: Andrea Giammarchi 
Date: Thu, 17 Jan 2019 08:22:59 +0100
Subject: [PATCH 51/71] Fix #13 - Do not remove wires when these are used to
 prepend

---
 cjs/utils.js | 2 +-
 esm/utils.js | 2 +-
 index.js     | 2 +-
 min.js       | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/cjs/utils.js b/cjs/utils.js
index 487f8b6..c4f7f11 100644
--- a/cjs/utils.js
+++ b/cjs/utils.js
@@ -288,7 +288,7 @@ const applyDiff = (
           futureStart++,
           futureStart,
           currentIndex < currentLength ?
-            get(currentNodes[currentIndex], 1) :
+            get(currentNodes[currentIndex], 0) :
             before
         );
         break;
diff --git a/esm/utils.js b/esm/utils.js
index e720627..9d3c115 100644
--- a/esm/utils.js
+++ b/esm/utils.js
@@ -280,7 +280,7 @@ const applyDiff = (
           futureStart++,
           futureStart,
           currentIndex < currentLength ?
-            get(currentNodes[currentIndex], 1) :
+            get(currentNodes[currentIndex], 0) :
             before
         );
         break;
diff --git a/index.js b/index.js
index f859604..86287bf 100644
--- a/index.js
+++ b/index.js
@@ -247,7 +247,7 @@ var applyDiff = function applyDiff(diff, get, parentNode, futureNodes, futureSta
       case INSERTION:
         // TODO: bulk appends for sequential nodes
         live.set(futureNodes[futureStart], 1);
-        append(get, parentNode, futureNodes, futureStart++, futureStart, currentIndex < currentLength ? get(currentNodes[currentIndex], 1) : before);
+        append(get, parentNode, futureNodes, futureStart++, futureStart, currentIndex < currentLength ? get(currentNodes[currentIndex], 0) : before);
         break;
       case DELETION:
         currentIndex++;
diff --git a/min.js b/min.js
index 3e4aef4..1ca9f32 100644
--- a/min.js
+++ b/min.js
@@ -1,2 +1,2 @@
 var domdiff=function(){"use strict";/*! (c) Andrea Giammarchi - ISC */
-var r={};try{r.Map=Map}catch(Map){r.Map=function(){function r(r){return-1<(e=n.indexOf(r))}var e=0,n=[],t=[];return{"delete":function(o){var f=r(o);return f&&(n.splice(e,1),t.splice(e,1)),f},get:function(n){return r(n)?t[e]:void 0},has:function(e){return r(e)},set:function(o,f){return t[r(o)?e:n.push(o)-1]=f,this}}}}var e=r.Map,n=function(r,e,n,t,o,f){if(o-t<2)e.insertBefore(r(n[t],1),f);else{for(var i=e.ownerDocument.createDocumentFragment();t=a;){for(var u=e,c=o;ua;)--c;v=u+o-c;var m=Array(v),k=s[c];for(--t;k;){for(var y=k,A=y.newi,M=y.oldi;t>A;)m[--v]=1,--t;for(;a>M;)m[--v]=-1,--a;m[--v]=0,--t,--a,k=k.prev}for(;t>=n;)m[--v]=1,--t;for(;a>=i;)m[--v]=-1,--a;return m},v=function(r,e,n,t,o,f,i){var a=n+f,u=[],c=void 0,v=void 0,s=void 0,l=void 0,d=void 0,h=void 0,p=void 0;r:for(c=0;c<=a;c++){if(c>50)return null;for(p=c-1,d=c?u[c-1]:[0,0],h=u[c]=[],v=-c;v<=c;v+=2){for(l=v===-c||v!==c&&d[p+v-1]=0;c--){for(;l>0&&s>0&&i(t[o+l-1],r[e+s-1]);)g[b--]=0,l--,s--;if(!c)break;p=c-1,d=c?u[c-1]:[0,0],v=l-s,v===-c||v!==c&&d[p+v-1]>>0;n=a;){for(var u=e,c=o;ua;)--c;v=u+o-c;var m=Array(v),k=s[c];for(--t;k;){for(var y=k,A=y.newi,M=y.oldi;t>A;)m[--v]=1,--t;for(;a>M;)m[--v]=-1,--a;m[--v]=0,--t,--a,k=k.prev}for(;t>=n;)m[--v]=1,--t;for(;a>=i;)m[--v]=-1,--a;return m},v=function(r,e,n,t,o,f,i){var a=n+f,u=[],c=void 0,v=void 0,s=void 0,l=void 0,d=void 0,h=void 0,p=void 0;r:for(c=0;c<=a;c++){if(c>50)return null;for(p=c-1,d=c?u[c-1]:[0,0],h=u[c]=[],v=-c;v<=c;v+=2){for(l=v===-c||v!==c&&d[p+v-1]=0;c--){for(;l>0&&s>0&&i(t[o+l-1],r[e+s-1]);)g[b--]=0,l--,s--;if(!c)break;p=c-1,d=c?u[c-1]:[0,0],v=l-s,v===-c||v!==c&&d[p+v-1]>>0;n
Date: Thu, 17 Jan 2019 08:28:49 +0100
Subject: [PATCH 52/71] 2.0.3

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 96713b5..d609a73 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "domdiff",
-  "version": "2.0.2",
+  "version": "2.0.3",
   "description": "A fast and simple way to diff childNodes",
   "unpkg": "min.js",
   "main": "cjs/index.js",

From 25e5207c4c0c643581d748c1e4a5c0351d858e03 Mon Sep 17 00:00:00 2001
From: Andrea Giammarchi 
Date: Wed, 3 Jul 2019 17:01:59 +0200
Subject: [PATCH 53/71] Fix issue with