请老师，检查一下代码

来源：3-10 编程练习

xiao白做大事

2020-12-07 01:39:55

<!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>
    <p>1</p>
    <p>2</p>
    <p>3</p>

    <script>
        const [p1, p2, p3] = document.getElementsByTagName('p');
        console.log(p1, p2, p3);

        const n = (color, backgroundColor, fontSize) => {
            const result = new Map([
                ['color', color],
                ['backgroundColor', backgroundColor],
                ['fontSize', fontSize]
            ]);
            return result;
        }

        const m = new Map([
            [p1, n('red', 'yellow', '40px')],
            [p2, n('green', 'pink', '40px')],
            [p3, n('blue', 'orange', '40px')]
        ]);

        m.forEach((propMap, elem) => {
            propMap.forEach((v,k) => {
                elem.style[k] = propMap.get(k);
            })
        });
    </script>
</body>

</html>
在这里输入