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 😄)

v0.0.9

v0.0.9 (2016-11-24)

🚀 New Feature

• Support Opera (#48 (Henry Zhu)

Implementation was as simple as modifying the chrome version and subtracting 13! (so chrome 54 = opera 41)

{
  "presets": [
    ["env", {
      "targets": {
        "opera": 41
      }
    }]
  ]
}

v0.0.7

v0.0.7 (2016-11-02)

🚀 New Feature

• Hardcode a current node version option (#35) (Henry Zhu)

This will detect the current node version being run and compile based on support

{
  "presets": [
    ["env", {
      "targets": {
        "node": "current" // parseFloat(process.versions.node)
      }
    }]
  ]
}

• add 'whitelist' option (#31) (Henry Zhu)

If you're finding any issues you can add plugins similarly to "plugins": []

 {
  "presets": [
    ["env", {
      "targets": {
        "chrome": 52
      },
      "whitelist": ["transform-es2015-arrow-functions"]
    }]
  ]
}

• Add more aliases (Henry Zhu)
• Update plugin data: firefox 52 supports async/await! (#29) (Henry Zhu)

🐛 Bug Fixes

• Change default behavior to act the same as babel-preset-latest (#33) (Henry Zhu)

{ "presets": ["env"] } // should act the same as babel-preset-latest

• Use compat-table equals option (#36) (Henry Zhu)

Compute and use compat-table equivalents

{
  "safari6": "phantom",
  "chrome44": "iojs",
  "chrome50": "node64",
  "chrome51": "node65",
  "chrome54": "node7",
  "chrome30": "android44",
  "chrome37": "android50",
  "chrome39": "android51",
  "safari7": "ios7",
  "safari71_8": "ios8",
  "safari9": "ios9",
  "safari10": "ios10",
  "chrome50": "node6"
}

Internal

• Add fixture helper for tests (#28) (Henry Zhu)