@web-configs/babel-preset

ThunderMiracle's org-wide Babel transform.

Usage

Install this package, as well as the parts of Babel you wish to use:

With Yarn

yarn add --dev --exact babel-core @web-configs/babel-preset

With npm

npm install babel-core @web-configs/babel-preset --save-dev --save-exact

Then, in your Babel configuration (which should be under the babel key of your package.json), set this package as the babel preset you’d like to use:

{
  "babel": {
    "presets": ["@web-configs/babel-preset"]
  }
}

Preset

The @web-configs/babel-preset preset is designed to be a common import that can be used for the browser or the server.

Usage

{
  "babel": {
    "presets": [
      ["@web-configs/babel-preset", {"typescript": true}]
    ]
  }
}

Targets

This preset does not specify any targets to control what is transpiled. You should use Babel's top-level targets option to specify build targets. For instance to target the current node version:

{
  "targets": "current node",
  "presets": ["@web-configs/babel-preset"],
  "plugins": ["polyfill-es-shims"]
}

See more details here.

Options

corejs, debug, modules, useBuiltIns

These options come from the @babel/preset-env preset and match the default values.

Read the options for more information on the possible values.

typescript

Enables @babel/preset-typescript to transfrom TypeScript into Javascript.

typescriptOptions

See all available options.

transformRuntime

boolean, defaults to false

This option when true will enable the @babel/plugin-transform-runtime plugin.

transformRuntimeOptions

This option configures the @babel/plugin-transform-runtime plugin when the transformRuntime option has been enabled.

See available options.

react

boolean, defaults to false.

This option when true will enable the @babel/preset-react preset.

reactOptions

The following options are different from the defaults. See all available options here.

reactOptions.useBuiltIns

boolean, defaults to true

Will use the native built-in instead of trying to polyfill behavior for any plugins that require one.

reactOptions.useSpread

boolean, defaults to true

When spreading props, use inline object with spread elements directly instead of Babel's extend helper or Object.assign.

transformReactConstantElements

boolean, defaults to false.

This option when true will enable the @babel/plugin-transform-react-constant-elements plugin in production mode.

Documentation