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react 简介

Yuheng Zhang
November 14, 2014
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react 简介

react 简介

Yuheng Zhang

November 14, 2014
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  1. Features • ⻚页⾯面渲染性能好,使⽤用 virtual DOM,避免操纵 DOM 损耗性能 • DOM 的读/写批量进⾏行,减少

    layout 计算次数 • 当属性变化时,基于 virtual DOM 全部重新渲染 • 不需要借⽤用模版语⾔言实现逻辑,no strings • 不需要专⻔门操作 DOM 的库(jQuery)
  2. var ExampleApplication = React.createClass({ render: function() { var appName =

    this.props.appName; var message = 'React has been successfully running.' + ' Appname is: ' + appName; return React.DOM.p(null, message); } }); var ExampleApplicationFactory = React.createFactory(ExampleApplication); React.render( ExampleApplicationFactory({appName: 'Demo'}), document.getElementById('container') ); Basic usage
  3. Full example <!DOCTYPE html> <html> <head> <meta http-equiv='Content-type' content='text/html; charset=utf-8'>

    <title>Example</title> <link rel="stylesheet" href="../shared/css/base.css" /> </head> <body> <h1>Example</h1> <div id="container"> </div> <script src="../../build/react.js"></script> <script> var ExampleApplication = React.createClass({ render: function() { var appName = this.props.appName; var message = 'React has been successfully running.' + ' Appname is: ' + appName; return React.DOM.p(null, message); } }); var ExampleApplicationFactory = React.createFactory(ExampleApplication); React.render( ExampleApplicationFactory({appName: 'Demo'}), document.getElementById('container') ); </script> </body> </html>
  4. View • 从 store 获取数据,并监听 store 的变化 • 数据由 store

    传⼊入 view • 当 view 通过 setState 改变 state 时,重 新渲染 • 当有浏览器事件时,调⽤用 action 对应⽅方法
  5. Q&A