lovecoding
/
vipAllDay


			
				
					
						
						
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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 
        ... spread
        类数组中无法使用数组方法 可以通过扩展运算符进行转换
     -->
     <ul>
        <li>aaa</li>
        <li>aaa</li>
        <li>aaa</li>
        <li>aaa</li>
     </ul>
     <script>
        let arr = [1,2,3,4,5,6];
        console.log(arr);
        console.log(...arr);
        let b = ["哈哈","oo"]
        let c = [...arr,...b];
        console.log(c);
        // 伪数组
        var lis = document.getElementsByTagName("li");
        console.log(lis);
        console.log([...lis])
     </script>
</body>
</html>