babel-preset-r29

babel-preset-r29

A Babel preset for Refinery29

Install

npm install --save-dev babel-preset-r29

Usage

Via .babelrc (Recommended)

.babelrc

{
  "presets": ["r29"]
}

Via CLI

$ babel script.js --presets r29

Via Node API

require("babel-core").transform("code", {
  presets: ["r29"]
});

Supported options

modules

"amd" | "umd" | "systemjs" | "commonjs" | false, defaults to "commonjs".

Enable transformation of ES6 module syntax to another module type.

Setting this to false will not transform modules. Use this for Webpack 2, since Webpack 2's tree-shaking works best if you don't transform import/export statements.

Example of a Webpack config where this is the case:

{
  test: /\.js$/,
  use: {
    loader: 'babel-loader',
    options: {
      presets: [
        ['r29', { modules: false }],
      ],
      plugins: []
    }
  },
  exclude: /node_modules/
}