v1.0.0

v1.0.0 (2016-12-09)

🚀 New Feature

• Add useBuiltIns option (#56) (@hzoo), (@yavorsky), (@existentialism)

A way to apply babel-preset-env for polyfills (via `"babel-polyfill"``).

This option will apply a new Babel plugin that replaces require("babel-polyfill") with the individual requires for babel-polyfill based on the target environments.

Install

npm install babel-polyfill --save

In

import "babel-polyfill"; // create an entry js file that contains this
// or 
import "core-js";

Out (different based on environment)

// chrome 55
import "core-js/modules/es7.string.pad-start"; // haha left_pad
import "core-js/modules/es7.string.pad-end";
import "core-js/modules/web.timers";
import "core-js/modules/web.immediate";
import "core-js/modules/web.dom.iterable";

.babelrc Usage

{
  "presets": [
    ["env", {
      "targets": {
        "electron": 1.4
      },
      "modules": false, // webpack 2
      "useBuiltIns": true // new option
    }]
  ]
}

Also looking to make an easier integration point via Webpack with this method. Please reach out if you have ideas!

---

• Support Electron (#55) (@paulcbetts)

Electron is also an environment, so Paul went ahead and added support for this!

.babelrc Usage

{
  "presets": [ ["env", {"targets": { "electron": 1.4 }}]]
}

Currently we are manually updating the data in /data/electronToChromium.js, but @kevinsawicki says we could generate the data from atom-shell/dist/index.json as well! (Someone should make a PR 😄)