babel-plugin-transform-system-import-commonjs

babel-plugin-transform-system-import-commonjs

Babel plugin that transforms ES2015 System.import into CommonJS require.

Deprecation notice

** Since import() proposal was accepted, System.import function now is obsolete and this plugin is not recommended to use in new projects. Please use import() function with babel-plugin-transform-import-commonjs instead. **

How this works

This plugin transforms

var myModule = "./path/to/myModule";

System.import(myModule).then(function (module) {
  console.log(module);
});

to

var myModule = "./path/to/myModule";

new Promise(function(resolve) {
  resolve(require(myModule));
}.bind(this)).then(function (module) {
  console.log(module);
});

Requirements

You need support for Promise, use polyfill if needed.

Installation

$ npm install babel-plugin-transform-system-import-commonjs

Usage

Via .babelrc (Recommended)

.babelrc

{
  "plugins": ["transform-system-import-commonjs"]
}

Via CLI

$ babel --plugins transform-system-import-commonjs script.js

Via Node API

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