@prague-digi/babel-preset-react-app

babel-preset-react-app

This package includes the Babel preset used by Create React App.
Please refer to its documentation:

• Getting Started – How to create a new app.
• User Guide – How to develop apps bootstrapped with Create React App.

Usage in Create React App Projects

The easiest way to use this configuration is with Create React App, which includes it by default. You don’t need to install it separately in Create React App projects.

Usage Outside of Create React App

If you want to use this Babel preset in a project not built with Create React App, you can install it with following steps.

First, install Babel.

Then install babel-preset-react-app.

npm install babel-preset-react-app --save-dev

Then create a file named .babelrc with following contents in the root folder of your project:

{
  "presets": ["react-app"]
}

This preset uses the useBuiltIns option with transform-object-rest-spread and transform-react-jsx, which assumes that Object.assign is available or polyfilled.

Usage with TypeScript

To use this package with @babel/preset-typescript, you need to disable @babel/preset-flow first.

You can achieve this by doing:

{
  "presets": [
    ["react-app", {
        "flow": false
    }],
    "@babel/typescript"
  ]
}

Changelog

5.0.0 (2021-12-14)

Create React App 5.0 is a major release with several new features and the latest version of all major dependencies.

Thanks to all the maintainers and contributors who worked so hard on this release! 🙌

Highlights

• webpack 5 (#11201)
• Jest 27 (#11338)
• ESLint 8 (#11375)
• PostCSS 8 (#11121)
• Fast Refresh improvements and bug fixes (#11105)
• Support for Tailwind (#11717)
• Improved package manager detection (#11322)
• Unpinned all dependencies for better compatibility with other tools (#11474)
• Dropped support for Node 10 and 12