react-native/babel-preset
Kelvin Sherlock 46ba1532fd babel-preset - transform-es2015-constants was replaced by check-es2015-constants.
Summary:
The babel plugin transform-es2015-constants was replaced by check-es2015-constants.

References:

T2970
rBW0a3b3b03dbcfc8d1e809a0eaf6270eec8de80763
T3053

This patch updates the babel preset to use check-es2015-constants which should be more future-proof and will receive bug fixes.
Closes https://github.com/facebook/react-native/pull/6943

Reviewed By: davidaurelio

Differential Revision: D3189222

Pulled By: bestander

fb-gh-sync-id: a5ec23e297e1d3591d51641dd567049f4310b107
fbshipit-source-id: a5ec23e297e1d3591d51641dd567049f4310b107
2016-05-03 06:43:27 -07:00
..
configs babel-preset - transform-es2015-constants was replaced by check-es2015-constants. 2016-05-03 06:43:27 -07:00
lib Use "babel-preset-react-native" 2016-02-03 08:15:32 -08:00
transforms Adding 'transform-symbol-member' transform to preset. 2016-02-08 15:01:36 -08:00
README.md Use "babel-preset-react-native" 2016-02-03 08:15:32 -08:00
index.js Use "babel-preset-react-native" 2016-02-03 08:15:32 -08:00
package.json babel-preset - transform-es2015-constants was replaced by check-es2015-constants. 2016-05-03 06:43:27 -07:00
plugins.js babel-preset - transform-es2015-constants was replaced by check-es2015-constants. 2016-05-03 06:43:27 -07:00

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.