端端舝

React ⻌嬡
2016/05/30 翋琌ㄩ苤�

賡畿
? React 岆 Facebook 婓 2013 爛垀追桶腔珨��燴ゴ
傷 UI 腔嶱埭滲宒𤪕﹝
? Solve one problem:
? Building large applications with data that changes over
time
? 賤𢜪膘离揃蹋祥𠰍載陔腔湮倰炵緙ゴ傷宐罜虴眕腔�觳
? 夥源鋒桴

杻伎
? Virtual DOM:��俴厒僅樓辦腔燊潬
? 唬棗鳥梯棗紳梗紳喧:枑詢笭蚚俶

Virtual DOM
? 蚕黺紱釬DOM岆�偕惸腔�釬
? React𩂰椙�醱磐�芵綎virtual DOM廢�お�揃蹋�
�媆ㄛ椙virtual DOM鷂�蕣腔DOM掀�硐載�剒猁
��腔窒煦ㄛ眕樓辦傘政厒僅

啋璃Component
? 隅膽啋璃
? ReactClass createClass(object specification)
<div id="example"></div>
<script type="text/babel">
var HelloWorld = React.createClass({
render: function() {
return (
<h1>Hello,World!</h1>
);
}
});
ReactDOM.render(
<HelloWorld/>,
document.getElementById('example')
);
</script>
sample02-component.htm

JSX
JSX岆婓javascript最宒徨�笢ㄛ艘お��侔XML腔惤楊
蚚�鏡扴�醱磐�﹝
旮⻌JSX

JSX蛁砩岈�
? class => className
? for => htmlFor
? JSX 蚴�猁睫磁xml 㻢𨃨ㄛ嶱溫㻢蒐猁�腕磐帣,瞰⺼
<br/>

JSX �莩
? npm install -g react-tools
? jsx --watch src/ build/
? From React 辦厒爀罜

Babel
? The compiler for writing next generation
JavaScript
? <script src=/slideshow/react-js-63419375/63419375/"https:/cdnjs.cloudflare.com/ajax/libs/babel-
core/5.8.23/browser.min.js"></script>
? Babel REPL
Sample01-helloworld.htm

props
? 籵都蚚婓髺颷揃蹋奻
�虜啋璃�綒揃�緻赽啋璃
sample03-props.htm

state
? 湔溫�窒媆都��腔揃蹋
sample04-state.htm

Separate File
<script type="text/babel" src=/slideshow/react-js-63419375/63419375/"src/helloworld.js"></script>
Note that some browsers (Chrome, e.g.) will fail to load the file unless
it's served via HTTP.
sample06-separate-file.htm

Component Lifecycle
? Components have three main parts of their lifecycle:
? Mounting: A component is being inserted into the DOM.
? Updating: A component is being re-rendered to determine if the
DOM should be updated.
? Unmounting: A component is being removed from the DOM.
will methods, which are called right before something happens.
did methods which are called right after something happens.

Component Lifecycle
? componentWillMount()
? componentDidMount()
? componentWillReceiveProps(object nextProps)
? shouldComponentUpdate(object nextProps, object nextState)
? componentWillUpdate(object nextProps, object nextState)
? componentDidUpdate(object prevProps, object prevState)
? componentWillUnmount()

槽癒最宒蜊�(1)
? 祭豷1ㄛ隅膽Component
? <ChatRoom>
? <MessageBlock>
? <Messages>
? <InputSection>

? 祭豷2ㄛ揃蹋燊�鷂岈璃蚴�
? Props
? State
? Refs
? getInitialState
? onClick﹜onKeyPress
? 髺颷揃蹋�⻌䛐�
? sample08-index-chatroom-2.html

? 祭豷3ㄛSocket
? �颷揃蹋䛐�
? 場宎趙最宒偞隅 (componentDidMount)
? 屠�Socket
sample11-index-chatroom-scoket.html

React Native
? 2015 爛 3 堎爺腔媆緊ㄛ Facebook 嶱溫賸 React
Native 腔埻宎徨
? 瞳蚚 JavaScript 膘蕾埻汜 iOS 摯 Android App 腔遺殤
? ☆硐剒蚴�珨棒ㄛ善�諂褫�俴★ㄗ Write Once,
Run Everywhere ㄘ

［坳�蕉窣磐
? [ReactJs]菴珨��𥐯�瞰
? React Native (Teyou)
? 祥猁硐秪鮋俶夔蕉講奧腢欅 React.js
? 賊梗硃釵喧價插諒悝
? React Native �賡ㄩ眕 JavaScript 膘� iOS App
? ReactJS and Socket.IO Chat Application
? Windows狟減膘React Native Android嶱追虐噫�賤
? React Native夥鋒

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