Element.className - Web API 接口参考 编辑

概述

className 获取或设置指定元素的class属性的值。

语法

let cName = elementNodeReference.className;

elementNodeReference.className = cName;

• cName是一个字符串变量,表示当前元素的class属性的值,可以是由空格分隔的多个class属性值.

示例

let elm = document.getElementById("div1");

if (elm.className == "fixed") {
  // 跳过class属性为特定值的元素
  goNextElement();
}

注释

使用名称className而不是class作为属性名,是因为"class" 在JavaScript中是个保留字.

规范

• DOM Level 2 HTML: className

Specification	Status	Comment
DOM element.className	Living Standard
DOM4 element.className	Obsolete
Document Object Model (DOM) Level 2 HTML Specification element.className	Obsolete	Initial definition

浏览器兼容性

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

• Desktop
• Mobile

Feature	Chrome	Edge	Firefox (Gecko)	Internet Explorer	Opera	Safari
Basic support	(Yes)	(Yes)	(Yes)	(Yes)	(Yes)	(Yes)

Feature	Android	Chrome for Android	Edge	Firefox Mobile (Gecko)	IE Mobile	Opera Mobile	Safari Mobile
Basic support	(Yes)	(Yes)	(Yes)	(Yes)	(Yes)	(Yes)	(Yes)

相关链接

• element.classList