Element:hasAttribute() 方法
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
Element.hasAttribute()
方法返回一个表示当前元素的指定属性是否存在的布尔值。
语法
js
hasAttribute(name)
参数
name
-
表示属性名称的字符串。
返回值
一个布尔值。
示例
js
const foo = document.getElementById("foo");
if (foo.hasAttribute("bar")) {
// 做一些事情
}
规范
Specification |
---|
DOM # ref-for-dom-element-hasattribute① |
浏览器兼容性
Report problems with this compatibility data on GitHubdesktop | mobile | |||||||||||
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hasAttribute |
Legend
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- Full support
- Full support
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