lovecoding
/
W250913


			
				
					
						
						
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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>
    <script>
        let arr = [1,2,["a","b"],3,4];
        // let arr2 = arr;
        let arr2 = [...arr];
        arr[0]= "a";
        arr[2][0] = "hello";
        console.log(arr2);

        let obj = {
            a:1,
            b:2,
            c:{
                x:100,
                y:200
            }
        }
        // let obj2 = obj;
        let obj2 = {...obj};
        obj.a = 100;
        obj.c.x = 1000;
        console.log(obj2);
        
    </script>
</body>
</html>