babel/experimental/babel-preset-env/README.md

[WIP Do Not Use] babel-preset-env

Babel preset for all envs.

Install

$ npm install --save-dev babel-preset-env

Usage

Via .babelrc (Recommended)

.babelrc

{
  "presets": ["env"]
}

Via CLI

$ babel script.js --presets env

Via Node API

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

Options

• loose - Enable "loose" transformations for any plugins in this preset that allow them (Disabled by default).

{
  presets: [
    ["env", {
      chrome: 49
    }]
  ]
}