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react-native/babel-preset
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Peter van der Zee f8d6b97140 BREAKING CHANGE: UPGRADE REACT NATIVE TO BABEL 7! 
Summary:
BREAKING CHANGE
This change upgrades the React Native build pipeline from Babel 6 to Babel 7

If you use a `.babelrc` then you'll need to update it to Babel 7 (note that some plugins are no longer relevant, some plugins are automatically upgraded, and some will need some manual love).

Note that you may also need to upgrade your dev env, tests etc, to make sure they work with Babel 7.

Reviewed By: mjesun

Differential Revision: D7591303

fbshipit-source-id: 29cef21f6466633a9c366d1f3c0d3cf874c714db
 		2018-04-11 16:47:18 -07:00
..
configs BREAKING CHANGE: UPGRADE REACT NATIVE TO BABEL 7! 2018-04-11 16:47:18 -07:00
lib Add possibility to add custom plugin prefix 2018-02-27 13:16:59 -08:00
transforms Update additional license headers 2018-03-08 12:10:14 -08:00
README.md Use "babel-preset-react-native" 2016-02-03 08:15:32 -08:00
index.js Update license headers for MIT license 2018-02-16 18:31:53 -08:00
package.json Update to MIT license 2018-02-16 18:31:53 -08:00
plugins.js Update license headers for MIT license 2018-02-16 18:31:53 -08:00

README.md

babel-preset-react-native

Babel presets for React Native applications. React Native itself uses this Babel preset by default when transforming your app's source code.

If you wish to use a custom Babel configuration by writing a .babelrc file in your project's root directory, you must specify all the plugins necessary to transform your code. React Native does not apply its default Babel configuration in this case. So, to make your life easier, you can use this preset to get the default configuration and then specify more plugins that run before it.

Usage

As mentioned above, you only need to use this preset if you are writing a custom .babelrc file.

Installation

Install babel-preset-react-native in your app:

npm i babel-preset-react-native --save-dev

Configuring Babel

Then, create a file called .babelrc in your project's root directory. The existence of this .babelrc file will tell React Native to use your custom Babel configuration instead of its own. Then load this preset:

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

You can further customize your Babel configuration by specifying plugins and other options. See Babel's .babelrc documentation to learn more.

Help and Support

If you get stuck configuring Babel, please ask a question on Stack Overflow or find a consultant for help. If you discover a bug, please open up an issue.