2.0.0 • Public • Published


Now updated for webpack 2!

This project is meant to show how easy and useful it can be to use webpack as a tool-chain for npm packages.

Fun things in this project:

  • Source code and tests for the package are written with es2015+ and stage-0 features (specifically the features supported by the [env] and stage-0 presets for babel). See any *.js files in src for examples. See .babelrc for the babel configuration, and config/rules.js to see how babel was integrated into webpack.
  • Platform-specific polyfills and transpilation. Use of the [env] preset for babel allows webpack to avoid unused polyfills and source code transforms if the target platform supports them. See .babelrc to see how the preset was configured to support this.
  • Tree-shaking transpilation through webpack 2 and es2015+ modules. Due to the statically-analyzable module system provided by next-generation JavaScript, webpack can remove unused code and dependencies at transpiletime, resulting in smaller built artifacts.
  • Modules in lib directories can be loaded universally, like modules found in node_modules. See src/main.js and src/test/index.js for examples. See modules in config/resolve.js to see how this was configured.
  • Modules in src that end with *test.js and modules that are direct children of test directories can be run as mocha test modules, which will automatically be processed using webpack.

Getting Started

Clone the repository and install dependencies with npm.

$ git clone
cd babel-webpack-package-boilerplate
$ npm install


The build script defined in the package.json file uses webpack to transpile sources in the src directory. The successfully transpiled sources are placed in the dist folder. This folder is preserved by npm, but ignored by git.

$ npm run build

Watch-style building is supported by the build:watch script.

$ npm run build:watch

The prestart, and prepublish scripts defined in the package.json file reference the build script, so there's no need to run the build script manually in those situations.


Run the project with npm start.

$ npm start
  hello, world!

As said before, this will automatically run the build script first.


Test the project with npm test.

$ npm test

Watch-style testing is supported by the test:watch script.

$ npm run test:watch


Publish the project on the local machine (for testing) with npm install.

$ npm install . -g
$ babel-webpack-package-boilerplate
  hello, world!

Publish the package globally with npm publish.

$ npm publish
$ npm install -g babel-webpack-package-boilerplate
$ babel-webpack-package-boilerplate
  hello, world!

In both cases, again, this will automatically run the build script after installation.

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npm i babel-webpack-package-boilerplate

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