Webpack CommonsChunkPlugin, HtmlWebpackPlugin Setup

In this example, we will show you the capabilities of webpack’s commonsChunkPlugin. It is such an important feature of webpack that I ended up recording a video.

Code splitting with webpack’s CommonsChunkPlugin, html-webpack-plugin!

Single Entry Point

Note the followings :

  • entry – We have a single entry point in Router.jsx
  • output – Instruct webpack to create bundle.js from our single entry point
  • new HtmlWebpackPlugin – Generates the index.html file and injects the following script tag in it
<script type="text/javascript" src="build.js"></script>

Mutiple Entry Points

Note the followings :

  • entry – Instructs webpack to generate two bundles namely app, vendor
  • output – Instructs webpack to generate output bundle with the dynamic names. Here, it will generate the following bundles
app-[chunkhask].js
vendor-[chunkhash].js
  • new CommonsChunkPlugin – Instructs webpack to extract the common modules from the app, vendor entry points and generate a bundle with commons-[hash].js name which can be referred as commons at other places.

  • new HtmlWebpackPlugin – Generates index.html file and injects the following script tags in it

<script type="text/javascript" src="app-[chunkhash].js"></script>
<script type="text/javascript" src="commons-[chunkhash].js"></script>

Further Reading


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