[番外編] Hello, React Native

$ curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.31.1/install.sh | bash
$ nvm install v4.4.4
$ nvm alias default v4.4.4
$ node -v
v4.4.4

$ npm -v
3.3.6

# https://facebook.github.io/react-native/docs/getting-started.html#highly-recommended-installs
$ brew install watchman

$ npm install -g react-native-cli
$ react-native --version
react-native-cli: 0.2.0
react-native: 0.25.1

$ react-native init HelloWorld
$ cd HelloWorld/

$ react-native run-ios

$ open ios/HelloWorld.xcodeproj/

AppRegistry.registerComponent('HelloWorld', () => HelloWorld);