22-3concat

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Title</title>

    <style>

        body {

            font-family: "Microsoft YaHei", serif;

        }

        body, dl, dd, p, h1, h2, h3, h4, h5, h6 {

            margin: 0;

        }

        ol, ul, li {

            margin: 0;

            padding: 0;

            list-style: none;

        }

        img {

            border: none

        }

    </style>

</head>

<body>

<script>

    let a = [1,2,3];

    let b = [4,5,6];

    console.log(a);

    console.log(b);

    let c = a.concat(b);

    console.log(c);

</script>

</body>

</html>
巴特西

22-3concat

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