diff --git a/01 - JavaScript Drum Kit/index-START.html b/01 - JavaScript Drum Kit/index-START.html
index 4070d32767..c015baeb27 100644
--- a/01 - JavaScript Drum Kit/index-START.html	
+++ b/01 - JavaScript Drum Kit/index-START.html	
@@ -58,7 +58,30 @@
   <audio data-key="76" src="sounds/tink.wav"></audio>
 
 <script>
+  function playSound(e) {
+    // e is keyboard event info
+    // ${} 
+    // querySelector - css selector
+    const audio = document.querySelector(`audio[data-key="${e.keyCode}"]`);
+    const key = document.querySelector(`div[data-key="${e.keyCode}"]`);
+    if (!audio) return; // stop the function
+    audio.currentTime = 0; // rewind to start; 
+    audio.play(); // will not play again
+    // adding the class
+    key.classList.add('playing');
+  }
 
+  function removeTranstion(e) {
+    if (e.propertyName !== 'transform') return; // skip it if it is not transform
+    console.log(e.propertyName);
+    // this --> what get call against, so this is the key
+    this.classList.remove('playing');
+  }
+
+  // using the transition end event
+  const keys = document.querySelectorAll('.key');
+  keys.forEach(key => key.addEventListener('transitionend', removeTranstion));
+   window.addEventListener('keydown', playSound);
 </script>
 
 
diff --git a/02 - JS + CSS Clock/index-START.html b/02 - JS + CSS Clock/index-START.html
index 2712384201..63579e2a7a 100644
--- a/02 - JS + CSS Clock/index-START.html	
+++ b/02 - JS + CSS Clock/index-START.html	
@@ -61,12 +61,47 @@
       background:black;
       position: absolute;
       top:50%;
+      transform-origin:100%;
+      transform: rotate(90deg);
+      transition: all 0.05s;
+      transition-timing-function: cubic-bezier(0.1, 2.7, 0.58, 1);
     }
 
   </style>
 
   <script>
+  const secondHand = document.querySelector('.second-hand');
+  const minsHand = document.querySelector('.min-hand');
+  const hourHand = document.querySelector('.hour-hand');
+  var trackingSecond = 0;
 
+  function setDate() {
+    // grab the date
+    const now = new Date();
+    const seconds = now.getSeconds();
+
+    // fixed the weird animation when second is 0 (0-59)
+    if (seconds === 0) {
+      trackingSecond = trackingSecond + 1;
+    }
+
+    const secondsDegrees = (((seconds + trackingSecond * 60) / 60) * 360) + 90;
+    secondHand.style.transform = `rotate(${secondsDegrees}deg)`;
+
+    const mins = now.getMinutes();
+    const minsDegress = ((mins / 60) * 360) + 90;
+    minsHand.style.transform = `rotate(${minsDegress}deg)`;
+
+
+    const hour = now.getHours();
+    const hourDegrees = ((hour / 12) * 360) + 90;
+    hourHand.style.transform = `rotate(${hourDegrees}deg)`;
+  }
+
+  //run every second
+  setInterval(setDate, 1000);
+  // set immediately
+  setDate();
 
   </script>
 </body>
diff --git a/03 - CSS Variables/index-START.html b/03 - CSS Variables/index-START.html
index 7171607a8b..c6c220b940 100644
--- a/03 - CSS Variables/index-START.html	
+++ b/03 - CSS Variables/index-START.html	
@@ -21,10 +21,22 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
   <img src="https://source.unsplash.com/7bwQXzbF6KE/800x500">
 
   <style>
+     /*  css variable*/
+    :root {
+      --base: #ffc600;
+      --spacing: 10px;
+      --blur: 10px;
+    }
 
-    /*
-      misc styles, nothing to do with CSS variables
-    */
+    img {
+      padding: var(--spacing);
+      background: var(--base);
+      filter: blur(var(--blur));
+    }
+
+    .hl {
+      color: var(--base);
+    }
 
     body {
       text-align: center;
@@ -48,6 +60,17 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
   </style>
 
   <script>
+  // node list
+  // this is not an array
+  var inputs = document.querySelectorAll('.controls input');
+  function handleUpdate() {
+    var suffix = this.dataset.sizing || '';// object
+    console.log(this.dataset);
+    document.documentElement.style.setProperty(`--${this.name}`, this.value + suffix);
+  }
+
+  inputs.forEach(input => input.addEventListener('change', handleUpdate));
+  inputs.forEach(input => input.addEventListener('mousemove', handleUpdate));
   </script>
 
 </body>
diff --git a/04 - Array Cardio Day 1/index-START.html b/04 - Array Cardio Day 1/index-START.html
index 4162bce339..ab538f49d0 100644
--- a/04 - Array Cardio Day 1/index-START.html	
+++ b/04 - Array Cardio Day 1/index-START.html	
@@ -33,28 +33,112 @@
 
     // Array.prototype.filter()
     // 1. Filter the list of inventors for those who were born in the 1500's
+    // filter will return 2 out of 10
+    var fifteen = inventors.filter(function(investor) {
+      if (investor.year >= 1500 && investor.year < 1599) {
+        return true;// keep it
+      } 
+    });
+
+    // using the reduce to implement filter
+    // var fifteen = inventors.reduce(function(acc, investor) {
+    //    if (investor.year >= 1500 && investor.year < 1599) {
+    //     acc.push(inventor);
+    //   } 
+
+    //   return acc;
+    // }, []);
+
+
+    console.log(fifteen);
 
     // Array.prototype.map()
     // 2. Give us an array of the inventors' first and last names
+    // map return the amount of array you give it
+    var fullNames = inventors.map(function(investor) {
+        return investor.first + ' ' + investor.last;
+    });
+
+    console.log(fullNames);
 
     // Array.prototype.sort()
     // 3. Sort the inventors by birthdate, oldest to youngest
+    // two items, return 1, or 1-
+
+    var ordered = inventors.sort(function(firstPerson, secondPerson) {
+      if (firstPerson.year > secondPerson.year) {
+        return 1;
+      } else {
+        return -1;
+      }
+    });
+
+    // Simple way to implement
+    //var ordered = inventors.sort((a, b) => a.year > b.year ? 1 : -1);
+
+    console.table(ordered);
 
     // Array.prototype.reduce()
     // 4. How many years did all the inventors live?
 
+    var totalYears = inventors.reduce(function(total, investor) {
+      return total + (investor.passed -  investor.year);
+    }, 0);
+    console.log(totalYears);
+
     // 5. Sort the inventors by years lived
 
+    var oldest = inventors.sort(function(a, b) {
+      var lastGuy = a.passed - a.year;
+      var nextGuy = b.passed - b.year;
+
+      if (lastGuy > nextGuy) {
+        return -1;
+      } else {
+        return 1;
+      }
+    });
+
+    console.table(oldest);
+
     // 6. create a list of Boulevards in Paris that contain 'de' anywhere in the name
     // https://en.wikipedia.org/wiki/Category:Boulevards_in_Paris
+    // var category = document.querySelector('.mw-category');
+    // var links = Array.from(category.querySelectorAll('a'));
+
+    // // 
+    // var de = links.map(function(link) {
+    //   return link.textContent;
+    // }).filter(function(streetName) {
+    //   return streetName.includes('de');
+    // });
 
 
     // 7. sort Exercise
     // Sort the people alphabetically by last name
+    var alpha = people.sort(function(lastOne, nextOne) {
+      var [aFirst, aLast] = lastOne.split(', ');
+      var [bFirst, bLast] = nextOne.split(', ');
+      return aLast > bLast ? 1 : -1
+    });
+
+    
+
+    console.log(alpha);
 
     // 8. Reduce Exercise
     // Sum up the instances of each of these
     const data = ['car', 'car', 'truck', 'truck', 'bike', 'walk', 'car', 'van', 'bike', 'walk', 'car', 'van', 'car', 'truck' ];
+    var transportation = data.reduce(function(obj, item) {
+      if (!obj[item]) {
+        obj[item] = 0;
+      }
+
+      obj[item]++;
+      return obj;
+    }, {});
+
+    console.log(transportation);
 
   </script>
 </body>
diff --git a/05 - Flex Panel Gallery/index-START.html b/05 - Flex Panel Gallery/index-START.html
index e1d643ad5c..eb7ed7b38f 100644
--- a/05 - Flex Panel Gallery/index-START.html	
+++ b/05 - Flex Panel Gallery/index-START.html	
@@ -24,6 +24,7 @@
     .panels {
       min-height:100vh;
       overflow: hidden;
+      display: flex;
     }
 
     .panel {
@@ -41,6 +42,12 @@
       font-size: 20px;
       background-size:cover;
       background-position:center;
+      flex: 1;
+      justify-content: center;
+      align-items:center;
+      display:flex;;
+      flex-direction: column;
+    /*  display evently*/
     }
 
 
@@ -54,8 +61,17 @@
       margin:0;
       width: 100%;
       transition:transform 0.5s;
+      flex: 1 0 auto;
+      display: flex;
+      justify-content: center;
+      align-content: center;
     }
 
+    .panel > *:first-child {transform: translateY(-100%);}
+    .panel.open-active > *:first-child {transform: translateY(0);}
+    .panel > *:last-child {transform: translateY(100%);}
+    .panel.open-active > *:last-child {transform: translateY(0);}
+
     .panel p {
       text-transform: uppercase;
       font-family: 'Amatic SC', cursive;
@@ -68,6 +84,8 @@
 
     .panel.open {
       font-size:40px;
+      flex:5;
+
     }
 
     .cta {
@@ -107,10 +125,20 @@
   </div>
 
   <script>
+  var panels = document.querySelectorAll('.panel');
+  function toggleOpen() {
+    this.classList.toggle('open');
+  }
+
+  function toggleActive(e) {
+    if (e.propertyName.includes('flex')) {
+      this.classList.toggle('open-active');
+    }
+  }
 
+  panels.forEach(panel => panel.addEventListener('click', toggleOpen));
+   panels.forEach(panel => panel.addEventListener('transitionend', toggleActive));
   </script>
 
-
-
 </body>
 </html>
diff --git a/06 - Type Ahead/index-START.html b/06 - Type Ahead/index-START.html
index 1436886918..057ba0255a 100644
--- a/06 - Type Ahead/index-START.html	
+++ b/06 - Type Ahead/index-START.html	
@@ -16,6 +16,51 @@
   </form>
 <script>
 const endpoint = 'https://gist.githubusercontent.com/Miserlou/c5cd8364bf9b2420bb29/raw/2bf258763cdddd704f8ffd3ea9a3e81d25e2c6f6/cities.json';
+var cities = [];
+
+fetch(endpoint).then(blob => blob.json())
+               .then(data => cities.push(...data))
+
+function filterCity (inputValue, cityList) {
+  return cityList.filter(function(place) {
+
+    var city = place.city.toLowerCase();
+    var state = place.state.toLowerCase();
+
+    if (city.indexOf(inputValue.toLowerCase()) > -1 || state.indexOf(inputValue.toLowerCase()) > -1 ) {
+      return true;
+    }
+  });
+}
+
+function numberWithCommas(x) {
+  return x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ',');
+}
+
+function showSuggestion() {
+  var inputValue = this.value;
+  var filterResult = filterCity(inputValue, cities);
+
+
+
+  var html = filterResult.map(result => {
+    var regex = new RegExp(this.value, 'gi');
+    var city = result.city.replace(regex, `<span class="hl">${this.value}</span>`);
+    var state = result.state.replace(regex, `<span class="hl">${this.value}</span>`);
+
+    return `<li>
+                <span class="name">${city}, ${state}</span>   
+                <span class="population">${numberWithCommas(result.population)}</span>
+            </li>`;
+  }).join('');
+
+  var suggestionDOMObj = document.querySelector('.suggestions');
+  suggestionDOMObj.innerHTML = html;
+}
+
+var input = document.querySelector('.search');
+input.addEventListener('change', showSuggestion);
+input.addEventListener('keyup', showSuggestion);
 
 </script>
   </body>
diff --git a/07 - Array Cardio Day 2/index-START.html b/07 - Array Cardio Day 2/index-START.html
index 206ec31aa0..c5c9e6f342 100644
--- a/07 - Array Cardio Day 2/index-START.html	
+++ b/07 - Array Cardio Day 2/index-START.html	
@@ -26,16 +26,46 @@
 
     // Some and Every Checks
     // Array.prototype.some() // is at least one person 19?
+    var isAdult = people.some(function(person) {
+      var currentYear = (new Date()).getFullYear();
+      if (currentYear -  person.year >= 19) {
+        return true;
+      }
+    });
+
+    // var isAdult = people.some(person => {
+    //    var currentYear = (newDate()).getFullYear();
+    //    return currentYear -  person.year >= 19;
+    // })
+
     // Array.prototype.every() // is everyone 19?
+    var allAdult = people.every(person => {
+         var currentYear = (new Date()).getFullYear();
+         return currentYear -  person.year >= 19;
+      })
 
     // Array.prototype.find()
     // Find is like filter, but instead returns just the one you are looking for
+    // return the first item you find
+    var comment =  comments.find(comment => comment.id === 823423);
+    console.log(comment);
     // find the comment with the ID of 823423
 
     // Array.prototype.findIndex()
     // Find the comment with this ID
     // delete the comment with the ID of 823423
 
+    var index = comments.findIndex(comment => comment.id === 823423);
+
+    // splice mutable the array
+    // comments.splice(index, 1);
+    // console.table(comments);
+
+    var newComments = [
+      ...comments.slice(0, index),
+      ...comments.slice(index + 1)
+    ];
+    console.table(newComments);
   </script>
 </body>
 </html>
diff --git a/08 - Fun with HTML5 Canvas/index-START.html b/08 - Fun with HTML5 Canvas/index-START.html
index 37c148df07..f458a6781c 100644
--- a/08 - Fun with HTML5 Canvas/index-START.html	
+++ b/08 - Fun with HTML5 Canvas/index-START.html	
@@ -7,6 +7,54 @@
 <body>
 <canvas id="draw" width="800" height="800"></canvas>
 <script>
+	var canvas = document.querySelector('#draw');
+	var ctx = canvas.getContext('2d');
+	canvas.width = window.innerWidth;
+	canvas.height = window.innerHeight;
+	ctx.strokeStyle = '#BADA55';
+	ctx.lineJoin = 'round';
+	ctx.lineCap = 'round';
+	ctx.lineWidth = 100;
+
+	var isDrawing = false;
+	var lastX = 0;
+	var lastY = 0;
+	var hue = 0;
+	var direction = true;
+
+	function draw (e) {
+		if (!isDrawing) return;
+		ctx.strokeStyle = `hsl(${hue}, 100%, 50%)`;
+		ctx.beginPath();
+		ctx.moveTo(lastX, lastY);
+		ctx.lineTo(e.offsetX, e.offsetY);
+		ctx.stroke();
+
+		[lastX, lastY] = [e.offsetX, e.offsetY];
+		console.log(e);
+
+		hue++;
+		if (hue >= 360) {
+		 	hue = 0;
+		}
+		if (ctx.lineWidth >= 100 || ctx.lineWidth <= 1) {
+		    direction = !direction;
+		}
+
+		if(direction) {
+		  ctx.lineWidth++;
+		} else {
+		  ctx.lineWidth--;
+		}
+	}
+
+	canvas.addEventListener('mousedown', (e) => {
+		isDrawing = true;
+		[lastX, lastY] = [e.offsetX, e.offsetY];
+	});
+	canvas.addEventListener('mousemove', draw);
+	canvas.addEventListener('mouseup', () => isDrawing = false);
+	canvas.addEventListener('mouseout', () => isDrawing = false);
 </script>
 
 <style>
diff --git a/09 - Dev Tools Domination/index-START.html b/09 - Dev Tools Domination/index-START.html
index 196fffd719..6c772062f4 100644
--- a/09 - Dev Tools Domination/index-START.html	
+++ b/09 - Dev Tools Domination/index-START.html	
@@ -18,29 +18,65 @@
     }
 
     // Regular
+    console.log('hellow');
 
     // Interpolated
+    // %s 
+    console.log('Hello I am a %s string!', '💩');
 
     // Styled
+    console.log('%c i am some great text', 'font-size:50px; background:red;');
 
     // warning!
-
+    console.warn('oh nooo');
     // Error :|
+    console.error('shit!');
 
     // Info
-
+    console.info('crocodiles eat 3-4 people per year');
     // Testing
+    // fire if something is wrong
+    var p = document.querySelector('p');
+    console.assert(p.classList.contains('ouch'), 'that is wrong!');
 
     // clearing
+    console.clear();
 
     // Viewing DOM Elements
-
+    console.log(p);
+    console.dir(p);
+    console.clear();
     // Grouping together
+    dogs.forEach(dog => {
+      console.group(`${dog.name}`)
+      // console.groupCollapsed(`${dog.name}`);
+      console.log(`this is ${dog.name}`);
+      console.log(`${dog.name} is ${dog.age} years old`);
+      console.log(`${dog.name} is ${dog.age * 7} dog years old`);
+      console.groupEnd(`${dog.name}`);
+    });
 
     // counting
+    console.count('Wes');
+    console.count('Wes');
+    console.count('Steve');
+    console.count('Steve');
+    console.count('Wes');
+    console.count('Steve');
+    console.count('Wes');
+    console.count('Steve');
 
     // timing
-
+    // how long somehting takes
+    console.time('fetching data');
+    fetch('https://api.github.com/users/wesbos')
+      .then(data => data.json())
+      .then(data => {
+        console.timeEnd('fetching data');
+        console.log(data);
+      });
+
+      console.table(dogs);
   </script>
 </body>
 </html>
diff --git a/10 - Hold Shift and Check Checkboxes/index-START.html b/10 - Hold Shift and Check Checkboxes/index-START.html
index eb7ed310bb..9a9a44d0be 100644
--- a/10 - Hold Shift and Check Checkboxes/index-START.html	
+++ b/10 - Hold Shift and Check Checkboxes/index-START.html	
@@ -104,6 +104,29 @@
   </div>
 
 <script>
+ var checkboxes = document.querySelectorAll('.inbox input[type="checkbox"]');
+ var lastChecked;
+
+ function handleCheck(e) {
+  var inBetween = false;
+
+  if (e.shiftKey && this.checked) {
+    checkboxes.forEach(checkbox => {
+      if (checkbox === this || checkbox === lastChecked) {
+        inBetween = !inBetween;
+      }
+
+      if (inBetween) {
+        checkbox.checked = true;
+      }
+    });
+  }
+
+  lastChecked = this;
+ }
+
+ checkboxes.forEach(checkbox => checkbox.addEventListener('click', handleCheck));
+
 </script>
 </body>
 </html>
diff --git a/11 - Custom Video Player/scripts.js b/11 - Custom Video Player/scripts.js
index e69de29bb2..f167389181 100644
--- a/11 - Custom Video Player/scripts.js	
+++ b/11 - Custom Video Player/scripts.js	
@@ -0,0 +1,60 @@
+var player = document.querySelector('.player');
+var video = player.querySelector('.viewer');
+var progress = player.querySelector('.progress');
+var progressBar = player.querySelector('.progress__filled');
+var toggle = player.querySelector('.toggle');
+var skipButtons = player.querySelectorAll('[data-skip]');
+var ranges = player.querySelectorAll('.player__slider');
+
+function togglePlay() {
+	if (video.paused) {
+		video.play();
+	} else {
+		video.pause();
+	}
+}
+
+function updateButton() {
+	if (this.paused) {
+		toggle.textContent = '►';
+	} else {
+		toggle.textContent = '❚ ❚';	
+	}
+}
+
+function skip() {
+	// ?
+	video.currentTime = video.currentTime + parseFloat(this.dataset.skip);
+}
+
+function handleRangeUpdate() {
+	video[this.name] = this.value;
+}
+
+function handleProgress() {
+	var percent = video.currentTime / video.duration * 100;
+	progressBar.style.flexBasis = `${percent}%`;
+}
+
+function scrub(e) {
+	// ?
+	if (mousedown) {
+		video.currentTime = (e.offsetX / progress.offsetWidth) * video.duration;
+	}
+}
+
+video.addEventListener('click', togglePlay);
+toggle.addEventListener('click', togglePlay);
+video.addEventListener('play', updateButton);
+video.addEventListener('pause', updateButton);
+video.addEventListener('timeupdate', handleProgress);
+skipButtons.forEach(skipButton => skipButton.addEventListener('click', skip));
+ranges.forEach(range => range.addEventListener('change', handleRangeUpdate));
+ranges.forEach(range => range.addEventListener('mousemove', handleRangeUpdate));
+
+progress.addEventListener('click', scrub);
+
+var mouseDown = false;
+progress.addEventListener('mousedown', () => mousedown = true);
+progress.addEventListener('mouseup', () => mousedown = false);
+progress.addEventListener('mousemove', scrub);
diff --git a/11 - Custom Video Player/style.css b/11 - Custom Video Player/style.css
index c07581c1c0..b6253af905 100644
--- a/11 - Custom Video Player/style.css	
+++ b/11 - Custom Video Player/style.css	
@@ -89,7 +89,7 @@ body {
   width:50%;
   background:#ffc600;
   flex:0;
-  flex-basis:50%;
+  flex-basis:0%;
 }
 
 /* unholy css to style input type="range" */
diff --git a/12 - Key Sequence Detection/index-START.html b/12 - Key Sequence Detection/index-START.html
index 8cab786140..70e7cce59b 100644
--- a/12 - Key Sequence Detection/index-START.html	
+++ b/12 - Key Sequence Detection/index-START.html	
@@ -7,6 +7,17 @@
 </head>
 <body>
 <script>
+	var pressed = [];
+	var secretCode = 'wesbos';
+	window.addEventListener('keyup', (e) => {
+		console.log(e.key);
+		pressed.push(e.key);
+		pressed.splice(-secretCode.length - 1, pressed.length - secretCode.length);
+		if (pressed.join('').includes(secretCode)) {
+	    	console.log('DING DING!');
+	    	cornify_add();
+	    }
+	});
 </script>
 </body>
 </html>