lovecoding
/
class


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <!-- 
        扩展运算符:把数组或者类数组通过逗号转换
        ... spread
        类数组无法直接使用数组中的方法
     -->
     <ul>
        <li>11</li>
        <li>22</li>
        <li>33</li>
        <li>44</li>
     </ul>
     <script>
        var a = [1,2,3,4,5];
        console.log(a);
        console.log(...a);
        let [b,c,d,e,f] = a;
        console.log(b,c,d,e,f)
        // 类数组转为普通数组
        var lis = document.getElementsByTagName("li");
        console.log(lis);
        console.log([...lis]);
     </script>
</body>
</html>