Document:childElementCount 属性

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.

Document.childElementCount 只读属性返回文档的子元素数量。

要获取特定元素的子元素数量,请参阅 Element.childElementCount

一个数字。

示例

js
document.children;
// HTMLCollection,通常包含一个 <html> 元素,即文档的唯一子元素

document.childElementCount;
// 1

规范

Specification
DOM Standard
# dom-parentnode-childelementcount

浏览器兼容性

BCD tables only load in the browser

参见