Babel plugin to transpile import() to require.ensure, for Webpack.

Note that Webpack 2 has gotten import() after this code was written.

NOTE: Babylon v6.12.0 is required to correctly parse dynamic imports.

$ npm install babel-plugin-dynamic-import-webpack --save-dev

.babelrc

{
  "plugins": ["dynamic-import-webpack"]
}

$ babel --plugins dynamic-import-webpack script.js

require("babel-core").transform("code", {
  plugins: ["dynamic-import-webpack"]
});

Although the specification for import() supports a dynamic importing of modules in the browser runtime, webpack's require.ensure() is not dynamic and requires a hardcoded string to work correctly. For more information see webpack's documentation on dynamic imports.