replace require with es6 import in docs

Reviewed By: svcscm

Differential Revision: D2936839

fb-gh-sync-id: 7a921709a37de5e9aadf324d5438d51851326348
shipit-source-id: 7a921709a37de5e9aadf324d5438d51851326348

docs/Animations.md

@@ -344,7 +344,7 @@ your project, you will need to install it with `npm i react-tween-state
 --save` from your project directory.
 
 ```javascript
-var tweenState = require('react-tween-state');
+import tweenState from 'react-tween-state';
 
 var App = React.createClass({
   mixins: [tweenState.Mixin],
@@ -402,7 +402,7 @@ the middle of a press, it will animate back from the current state to
 the original value.
 
 ```javascript
-var rebound = require('rebound');
+import rebound from 'rebound';
 
 var App = React.createClass({
   // First we initialize the spring and add a listener, which calls
@@ -532,8 +532,7 @@ make them customizable, React Native exposes a
 [NavigatorSceneConfigs](https://github.com/facebook/react-native/blob/master/Libraries/CustomComponents/Navigator/NavigatorSceneConfigs.js) API.
 
 ```javascript
-var React = require('react-native');
-var { Dimensions } = React;
+import { Dimensions } from 'react-native';
 var SCREEN_WIDTH = Dimensions.get('window').width;
 var BaseConfig = Navigator.SceneConfigs.FloatFromRight;
 

docs/CommunicationIOS.md

@@ -39,11 +39,10 @@ RCTRootView *rootView = [[RCTRootView alloc] initWithBridge:bridge
 ```
 'use strict';
 
-var React = require('react-native');
-  var {
+import React, {
   View,
   Image
-} = React;
+} from 'react-native';
 
 class ImageBrowserApp extends React.Component {
   renderImage: function(imgURI) {

docs/EmbeddedAppAndroid.md

@@ -128,11 +128,10 @@ Copy & paste the following code to `index.android.js` in your root folder — it
 ```js
 'use strict';
 
-var React = require('react-native');
-var {
+import React, {
   Text,
   View
-} = React;
+} from 'react-native';
 
 class MyAwesomeApp extends React.Component {
   render() {

docs/EmbeddedAppIOS.md

@@ -66,11 +66,10 @@ Copy & paste following starter code for `index.ios.js` – it’s a barebones Re
 ```
 'use strict';
 
-var React = require('react-native');
-var {
+import React, {
   Text,
   View
-} = React;
+} from 'react-native';
 
 var styles = React.StyleSheet.create({
   container: {

docs/NativeComponentsAndroid.md

@@ -105,7 +105,7 @@ The very final step is to create the JavaScript module that defines the interfac
 ```js
 // ImageView.js
 
-var { requireNativeComponent, PropTypes } = require('react-native');
+import { requireNativeComponent, PropTypes } from 'react-native';
 
 var iface = {
   name: 'ImageView',

docs/NativeComponentsIOS.md

@@ -49,7 +49,7 @@ Then you just need a little bit of JavaScript to make this a usable React compon
 ```javascript
 // MapView.js
 
-var { requireNativeComponent } = require('react-native');
+import { requireNativeComponent } from 'react-native';
 
 // requireNativeComponent automatically resolves this to "RCTMapManager"
 module.exports = requireNativeComponent('RCTMap', null);
@@ -79,8 +79,7 @@ This isn't very well documented though - in order to know what properties are av
 
 ```javascript
 // MapView.js
-var React = require('react-native');
-var { requireNativeComponent } = React;
+import React, { requireNativeComponent } from 'react-native';
 
 class MapView extends React.Component {
   render() {
@@ -302,7 +301,8 @@ Since all our native react views are subclasses of `UIView`, most style attribut
 ```javascript
 // DatePickerIOS.ios.js
 
-var RCTDatePickerIOSConsts = require('react-native').UIManager.RCTDatePicker.Constants;
+import { UIManager } from 'react-native';
+var RCTDatePickerIOSConsts = UIManager.RCTDatePicker.Constants;
 ...
   render: function() {
     return (

docs/NativeModulesAndroid.md

@@ -130,14 +130,14 @@ To make it simpler to access your new functionality from JavaScript, it is commo
  * 2. int duration: The duration of the toast. May be ToastAndroid.SHORT or
  *    ToastAndroid.LONG
  */
-var { NativeModules } = require('react-native');
+import { NativeModules } from 'react-native';
 module.exports = NativeModules.ToastAndroid;
 ```
 
 Now, from your other JavaScript file you can call the method like this:
 
 ```js
-var ToastAndroid = require('./ToastAndroid');
+import ToastAndroid from './ToastAndroid';
 
 ToastAndroid.show('Awesome', ToastAndroid.SHORT);
 ```
@@ -275,7 +275,7 @@ sendEvent(reactContext, "keyboardWillShow", params);
 JavaScript modules can then register to receive events by `addListenerOn` using the `Subscribable` mixin
 
 ```js
-var { DeviceEventEmitter } = require('react-native');
+import { DeviceEventEmitter } from 'react-native';
 ...
 
 var ScrollResponderMixin = {

docs/NativeModulesIOS.md

@@ -50,7 +50,8 @@ RCT_EXPORT_METHOD(addEvent:(NSString *)name location:(NSString *)location)
 Now, from your JavaScript file you can call the method like this:
 
 ```javascript
-var CalendarManager = require('react-native').NativeModules.CalendarManager;
+import { NativeModules } from 'react-native';
+var CalendarManager = NativeModules.CalendarManager;
 CalendarManager.addEvent('Birthday Party', '4 Privet Drive, Surrey');
 ```
 
@@ -334,7 +335,7 @@ The native module can signal events to JavaScript without being invoked directly
 JavaScript code can subscribe to these events:
 
 ```javascript
-var { NativeAppEventEmitter } = require('react-native');
+import { NativeAppEventEmitter } from 'react-native';
 
 var subscription = NativeAppEventEmitter.addListener(
   'EventReminder',

docs/PlatformSpecificInformation.md

@@ -37,7 +37,7 @@ BigButton.android.js
 With this setup, you can just require the files from a different component without paying attention to the platform in which the app will run.
 
 ```javascript
-var BigButton = require('./components/BigButton');
+import BigButton from './components/BigButton';
 ```
 
 React Native will import the correct component for the running platform.

docs/Timers.md

@@ -61,7 +61,7 @@ We found out that the primary cause of fatals in apps created with React Native
 This library does not ship with React Native - in order to use it on your project, you will need to install it with `npm i react-timer-mixin --save` from your project directory.
 
 ```javascript
-var TimerMixin = require('react-timer-mixin');
+import TimerMixin from 'react-timer-mixin';
 
 var Component = React.createClass({
   mixins: [TimerMixin],

docs/Troubleshooting.md

@@ -96,12 +96,12 @@ You need to run `adb reverse tcp:8081 tcp:8081` to forward requests from the dev
 
 ## Module that uses `WebSocket` (such as Firebase) throws an exception
 
-React Native implements a polyfill for WebSockets. These polyfills are initialized as part of the react-native module that you include in your application through `require('react-native')`. If you load another module that requires WebSockets, be sure to load/require it after react-native.
+React Native implements a polyfill for WebSockets. These polyfills are initialized as part of the react-native module that you include in your application through `import React from 'react-native'`. If you load another module that requires WebSockets, be sure to load/require it after react-native.
 
 So:
 ```
-var React = require('react-native');
-var Firebase = require('firebase');
+import React from 'react-native';
+import Firebase from 'firebase';
 ```
 
 Requiring firebase *before* react-native will result in a 'No transports available' redbox.