标签：console 读取 name js user data id log
标签上有两个属性data-id 和 data-user-name, 需要通过js去获取
|
1
2
3
4
5
6
7
8
9
|
<style>
#user::before {
content: attr(data-id);
}
#user::after {
content: attr(data-user-name);
}
</style>
<div id="user" data-id="666" data-user-name="Tom"></div>
|
方式一：dataset
|
1
2
3
4
5
6
7
8
9
10
11
12
13
|
let user = document.querySelector("#user");
console.log(user.dataset.id);
console.log(user.dataset.userName);
user.dataset.id = 777;
user.dataset.userName = "Jack";
user.dataset.age = 23;
delete user.dataset.userName;
|
方式二： getAttribute/setAttribute/removeAttribute
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
|
let user = document.querySelector("#user");
console.log(user.getAttribute("data-id"));
console.log(user.getAttribute("data-user-name"));
console.log(typeof user.getAttribute("data-id"));
user.setAttribute("data-id", 777);
user.setAttribute("data-age", 23);
user.removeAttribute("data-user-name");
|
方法三：jQuery.attr
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
|
<script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<script>
let user = $('#user');
console.log(user.attr("data-id"));
console.log(user.attr("data-user-name"));
user.attr("data-id", 777);
user.attr("data-age", 23);
user.removeAttr("data-user-name");
</script>
|
方法四：jQuery.data
注意：$.data()的值进行修改并不会影响到DOM元素上的data-*属性的改变
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
|
<script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<script>
let user = $("#user");
console.log(user.data("id"));
console.log(user.data("user-name"));
user.data("id", 777);
user.data("age", 23);
user.removeData("user-name");
console.log(user.data());
</script>
|
标签：console,
读取,
name,
js,
user,
data,
id,
log
From： https://www.cnblogs.com/QunShan/p/16883573.html