如何通过JS获取 data-age里面的1 2 3 4 5 分别乘以5赋值到sapn元素里面显示为 5 10 15 20 25

JS如何获取HTML内部元素且赋值

<div id="content">
        <div class="name" data-age="1">class="age"></span>div>
        <div class="name" data-age="2">class="age"></span>div>
        <div class="name" data-age="3">class="age"></span>div>
        <div class="name" data-age="4">class="age"></span>div>
        <div class="name" data-age="5">class="age"></span>div>
    div>

如何通过JS获取 data-age里面的1 2 3 4 5 分别乘以5赋值到sapn元素里面显示为 5 10 15 20 25


<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <div id="content">
        <div class="name" data-age="1"><span class="age"></span></div>
        <div class="name" data-age="2"><span class="age"></span></div>
        <div class="name" data-age="3"><span class="age"></span></div>
        <div class="name" data-age="4"><span class="age"></span></div>
        <div class="name" data-age="5"><span class="age"></span></div>
    </div>
    <script>
        var content = document.getElementById('content'); // 获取父元素
        var names = content.getElementsByClassName('name'); // 获取子元素
        for (var i = 0; i < names.length; i++) { // 循环遍历
            var age = names[i].getAttribute('data-age'); // 获取data-age的值
            names[i].getElementsByClassName('age')[0].innerHTML = age * 5; // 获取span元素并赋值
        }

    </script>
</body>

</html>

      let list = document.querySelectorAll("#content .name");
      list.forEach((item) => {
        item.querySelector(".age").innerHTML = parseInt(item.dataset.age) * 5;
      });