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
| 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.
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| 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) |