对象改成Map
来源：3-9 Map的应用
卷毛奋斗中
2022-07-16 17:10:16
<!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>
<p>1</p>
<p>2</p>
<p>3</p>
<script>
const [p1,p2,p3] = document.querySelectorAll('p');
const m = new Map([
[p1,new Map([
['color','red'],
['backgroundColor','orange'],
['fontSize','40px']
])],
[p2,new Map([
['color','blue'],
['backgroundColor','blue'],
['fontSize','40px']
])],
[p3,new Map([
['color','green'],
['backgroundColor','yellow'],
['fontSize','40px']
])],
]);
m.forEach(function(propObj,elem,map){
propObj.forEach(function(value,k,map){
elem.style[k] = value;
})
})
</script>
</body>
</html>写回答
1回答
-
好帮手慕久久
2022-07-16
同学你好，代码是对的，很棒，祝学习愉快！
0
