babel-preset-druid

Babel preset for use in Druid's React projects.

Included Babel presets and plugins

• babel-preset-env
• babel-preset-react

Note that babel-preset-react adds babel-preset-flow.

• babel-plugin-transform-object-rest-spread This allows using the let a = { a: 'hello', ...anotherObject } syntax.

Browser support

Since this uses babel-preset-env, browser support is embedded in the preset.

The following browsers are supported:

• Last 4 Android versions
• Last 2 Chrome versions
• Last 2 ChromeAndroid versions
• Last 3 Firefox versions
• Last 2 FirefoxAndroid versions
• Last 3 iOS versions
• Last 2 Safari versions
• IE 9-10
• All Edge versions

The browser list can be overriden by providing parameters to the preset:

[
  'babel-preset-druid',
  {
    babelPresetEnv: {
      targets: {
        browsers: [
          "ie 8-10",
          "edge >= 12"
        ]
      }
    }
  }
]

Note that if you want to support all edge versions, you must specify edge >= 12