DOMTokenList.entries()

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句法
范例
规范
浏览器兼容性
另请参阅
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DOMTokenList.entries() method returns an iterator allowing you to go through all key/value pairs contained in this object. The values are DOMString objects, each representing a single token.

句法

tokenList.entries();

返回值

返回 iterator .

范例

In the following example we retrieve the list of classes set on a <span> element as a DOMTokenList 使用 Element.classList . We when retrieve an iterator containing the key/value pairs using entries() , then iterate through each one using a for...of loop, writing them to the <span> 's Node.textContent .

First, the HTML:

<span class="a b c"></span>

Now the JavaScript:

let span = document.querySelector("span");
let classes = span.classList;
let iterator = classes.entries();
for (let value of iterator) {
  span.textContent += value + ' ++ ';
}

输出看起来像这样：

规范

规范	状态	注释
DOM The definition of 'entries() (as iterable<Node>)' in that specification.	实时标准	初始定义。

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`entries`	Chrome 45	Edge ≤79	Firefox 50	IE 不支持 No	Opera 32	Safari 10	WebView Android 45	Chrome Android 45	Firefox Android 50	Opera Android 32	Safari iOS 10	Samsung Internet Android 5.0

图例

完整支持
不支持

另请参阅

DOMSettableTokenList (object that extends DOMTokenList with settable .value property)

元数据

最后修改： Jun 22, 2020

DOM (文档对象模型)
DOMTokenList
特性
1. length
方法
1. add()
2. contains()
3. entries()
4. forEach()
5. item()
6. keys()
7. remove()
8. replace()
9. supports()
10. toggle()
11. value
12. values()
DOM 相关页面

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句法

返回值

范例

规范

浏览器兼容性

图例

另请参阅

相关话题