Plugin is useful in any case that requires to provide external asset or resource (mostly like css, html or txt files) to be used in your code. Any embedding task like building standalone pages, email newsletters or injectable widgets for the page.

NPM Package:https://www.npmjs.com/package/babel-plugin-inject

importWidgetfrom'./widgetClass.js';(function(template1Html,template2Html,style1Css,style2Css){classWidget1extendsWidget{constructor(options){super(options);}method1(){}}varw=newWidget1();w.method1();})(inject('./static1.htm'),inject('./template2.tpl'),// To be preprocessedinject('./style1.css'),inject('./style2.sass')// To be preprocessed);

letinjectCss=inject('injectCSS');injectCSS('body{color:red}');

1. txt Simple plain text injection, used as a base for other content driven plugins
2. htm, html Placeholder for HTML injection. At this moment do nothing more then txt Could be extended to minify/optimize html
3. tpl Compile HTML to Lodash completable template and provides temperating function

1. injectCSS inserts provided CSS to document

$ npm install babel-plugin-inject --save

.babelrc

{"plugins": ["babel-plugin-inject"] }

$ babel --plugins babel-plugin-inject script.js

require("babel-core").transform('source code',{plugins: ['babel-plugin-inject']});

We use another name for our function not to mess with existing inject() if any:

require("babel-core").transform('source code',{plugins: [['babel-plugin-inject',{fn: 'inject2'}]]});

letinjectCss=inject2('injectCSS');injectCSS('body{color:red}');