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1# react
2
3An npm package to get you immediate access to [React](https://reactjs.org/),
4without also requiring the JSX transformer. This is especially useful for cases where you
5want to [`browserify`](https://github.com/substack/node-browserify) your module using
6`React`.
7
8**Note:** by default, React will be in development mode. The development version includes extra warnings about common mistakes, whereas the production version includes extra performance optimizations and strips all error messages.
9
10To use React in production mode, set the environment variable `NODE_ENV` to `production`. A minifier that performs dead-code elimination such as [UglifyJS](https://github.com/mishoo/UglifyJS2) is recommended to completely remove the extra code present in development mode.
11
12## Example Usage
13
14```js
15var React = require('react');
16```