ParentNode.children

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句法
范例
Polyfill
规范
浏览器兼容性
另请参阅
相关话题

ParentNode property children is a read-only property that returns a live HTMLCollection which contains all of the child 元素 of the node upon which it was called.

句法

let children = node.children;

值

HTMLCollection which is a live, ordered collection of the DOM elements which are children of node . You can access the individual child nodes in the collection by using either the item() method on the collection, or by using JavaScript array-style notation.

If the node has no element children, then children is an empty list with a length of 0 .

范例

const foo = document.getElementById('foo');
for (let i = 0; i < foo.children.length; i++) {
  console.log(foo.children[i].tagName);
}

Polyfill

// Overwrites native 'children' prototype.
// Adds Document & DocumentFragment support for IE9 & Safari.
// Returns array instead of HTMLCollection.
;(function(constructor) {
  if (constructor &&
    constructor.prototype &&
    constructor.prototype.children == null) {
    Object.defineProperty(constructor.prototype, 'children', {
      get: function() {
        let i = 0, node, nodes = this.childNodes, children = [];
        while (node = nodes[i++]) {
          if (node.nodeType === 1) {
            children.push(node);
          }
        }
        return children;
      }
    });
  }
})(window.Node || window.Element);

规范

规范	状态	注释
DOM The definition of 'ParentNode.children' 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
`children`	Chrome 1	Edge 12	Firefox 3.5	IE 9 9 Internet Explorer 6, 7 and 8 supported it, but erroneously includes `注释` 节点。	Opera 10	Safari 4	WebView Android 1	Chrome Android 18	Firefox Android 4	Opera Android 10.1	Safari iOS 9	Samsung Internet Android 1.0
Support on `Document` and `DocumentFragment`	Chrome 29	Edge 16	Firefox 25	IE No	Opera 16	Safari 9	WebView Android Yes	Chrome Android Yes	Firefox Android ?	Opera Android ?	Safari iOS 9	Samsung Internet Android Yes
Support on `SVGElement`	Chrome Yes	Edge 16	Firefox Yes	IE No	Opera ?	Safari 9	WebView Android Yes	Chrome Android Yes	Firefox Android ?	Opera Android ?	Safari iOS 9	Samsung Internet Android Yes

图例

完整支持
不支持
兼容性未知 ?
实验。期望将来行为有所改变。

另请参阅

ParentNode and ChildNode 接口。
Object types implementing this interface: Document , 元素 ，和 DocumentFragment .
Node.childNodes

元数据

最后修改： Jan 24, 2020

DOM (文档对象模型)
ParentNode
特性
1. childElementCount
2. children
3. firstElementChild
4. lastElementChild
方法
实现通过：
DOM 相关页面

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句法

值

范例

Polyfill

规范

浏览器兼容性

图例

另请参阅

相关话题