zoukankan      html  css  js  c++  java
  • 02 创建虚拟DOM的两种方式

     1 <!DOCTYPE html>
     2 <html lang="en">
     3 <head>
     4     <meta charset="UTF-8">
     5     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     6     <title>Document</title>
     7     <script src="../js/react.development.js"></script>
     8     <script src="../js/react-dom.development.js"></script>
     9     <script src="../js/babel.min.js"></script>
    10 </head>
    11 <body>
    12     <div id="test1"></div>
    13     <div id="test2"></div>
    14 </body>
    15 </html>
    16 <!-- 方式一:纯JS创建虚拟DOM元素对象 -->
    17 <script>
    18     const msg="I like you.";
    19     const myid="box1";
    20     var vh3=React.createElement('h3',{id:'myid'},msg);//创建虚拟DOM
    21     ReactDOM.render(vh3,document.getElementById('test1'));//渲染到真实页面
    22 </script>
    23 
    24 <!-- 方式二:JSX创建虚拟DOM元素对象 -->
    25 <script type="text/babel">
    26     var vDom=<h1 id={myid}>{msg.toUpperCase()}</h1> //创建虚拟DOM
    27     ReactDOM.render(vDom,document.getElementById("test2"));//渲染到真实页面
    28 </script>

     

  • 相关阅读:
    清除所有缓存命令
    web前端工程师面试技巧 常见问题解答
    Web前端开发面试技巧
    JavaScript
    JavaScript Cookie
    JavaScript 计时事件
    javascript 弹窗
    JavaScript Window Navigator
    JavaScript Window History
    JavaScript Window Location
  • 原文地址:https://www.cnblogs.com/shanlu0000/p/12483970.html
Copyright © 2011-2022 走看看