lovecoding
/
web0331


			
				
					
						
						
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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>
        /**
         * 扩展运算符：
         * （...）
         * spread
        */
       var a = [1,2,3,4,5,6,7,8];
       var b = [...a];
       console.log(b);

       let a1 = [1,2,3];
       let b1 = [4,5,6];
       let c1 = [...a1,...b1];
       console.log(c1)
    </script>
</body>
</html>