lovecoding
/
VIPJAVA


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>入门</title>
</head>
<body>
<script>
    //数组对象
    let  arr = new Array("tom","zs","ls");

    let  arr1 = [1,"2",new Object()]

    //操作
    console.log(arr[0]);
    console.log(arr[1]);
    console.log(arr[2]);

    console.log(arr1[0]);
    console.log(arr1[1]);
    console.log(arr1[2]);

    //长度
    console.log(arr1.length)
    console.log(arr.length)

    //方法
    let arr2 = new Array();

    arr2[3] = "hij";
    arr2.push("abc");
    arr2.push("efg");

    console.log(arr2)

    console.log(arr2.length)

    console.log(arr2.pop()) ;
    console.log(arr2.pop()) ;
    console.log(arr2.pop()) ;

    console.log(arr2)

    let arr3 = new Array("1","2","3","4");

    console.log(arr3)
    //变成字符串 "1","2","3","4"

    let str = arr3.join(",");
    console.log(str)

    //Date
    let date = new Date();
    console.log(date)

</script>
</body>
</html>