lovecoding
/
web0715


			
				
					
						
						
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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>
    <ul>
        <li>1</li>
        <li>2</li>
        <li>3</li>
        <li>4</li>
        <li>5</li>
    </ul>
    <script>
        // let aLi = document.getElementsByTagName("li");
        // console.log(aLi);
        
        // 将类数组转换为真实数组
        // let arr = Array.from(aLi);
        // console.log(arr);

        // let a = 1;
        // let b = 2;
        // let c = 3;

        // 将一组值填入到数组当中
        // let arr1 = Array.of(a,b,c,"a","b");
        // console.log(arr1);

        let arr = [1,2,3,4,5,6,7,8,9];

        // arr.fill("a",4,7);
        // arr.fill("a",4);
        // console.log(arr);

        // let arr2 = new Array(4);
        // arr2.fill("a",0);
        let arr2 = (new Array(10)).fill("a");
        
        console.log(arr2);
    </script>
</body>
</html>