A custom set of plugins, based on the @babel/preset-env, which includes:

• @babel/plugin-proposal-class-properties Support for class private and public fields
• @babel/plugin-proposal-decorators for decorators support
• @babel/plugin-syntax-dynamic-import for dynamic import() syntax support
• babel-plugin-transform-inline-environment-variables: process.env replacements
• babel-plugin-istanbul: code coverage
• @babel/plugin-transform-react-jsx: transpile JSX
• babel-plugin-jsx: auto import JSX pragma
• babel-plugin-jsx-template: auto export a function with a JSX template
• babel-plugin-assertions: polyfill assertion statements with Chai
• babel-plugin-transform-commonjs: try to convert CommonJS modules to ES6 modules

Install

npm install @chialab/babel-preset -D
# or
yarn add @chialab/babel-preset -D

Usage

Add to the .babelrc file the preset:

{
    "presets": [
        ["@chialab/babel-preset", { ... }]
    ],
    "plugins": [ ... ]
}

Options

The preset inherits all the @babel/preset-env options, available here.

| Name | Accepts | Default | Description | | ------------------------ | --------- | ------- | -------------------------------------------------- | | env | Boolean | true | Should use @babel/preset-env. | | pragma | String | - | The JSX pragma. | | pragmaModule | String | - | The module path which exports the pragma. | | pragmaDefault | Boolean | false | Import pragma as default member. | | assertions | Boolean | false | Polyfill assertion statements with Chai. | | coverage | Boolean | false | Should enable code coverage. | | coverageInclude | Array | [] | A list of files to include in the coverage. | | coverageExclude | Array | [] | A list of files to exclude from the coverage. | | transformCommonjs | Boolean | false | Should convert CommonJS modules. | | transformCommonjsCache | Boolean | false | A Map instance to use as cache for the tranformer. |