Document: childElementCount property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since April 2018.

The Document.childElementCount read-only property returns the number of child elements of the document.

To get the number of children of a specific element, see Element.childElementCount.

Value

A number.

document.children;
// HTMLCollection, usually containing an <html> element, the document's only child

document.childElementCount;
// 1

Specification
DOM # dom-parentnode-childelementcount

	desktop					mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS
`childElementCount`	Chrome – Full support Chrome 29 (Release date: 2013-08-20) footnote Full support	Edge – Full support Edge 17 (Release date: 2018-04-30) footnote Full support	Firefox – Full support Firefox 25 (Release date: 2013-10-29) footnote Full support	Opera – Full support Opera 16 (Release date: 2013-08-27) footnote Full support	Safari – Full support Safari 9 (Release date: 2015-09-30) footnote Full support	Chrome Android – Full support Chrome Android 29 (Release date: 2013-08-21) footnote Full support	Firefox for Android – Full support Firefox for Android 25 (Release date: 2013-10-29) footnote Full support	Opera Android – Full support Opera Android 16 (Release date: 2013-09-18) footnote Full support	Safari on iOS – Full support Safari on iOS 9 (Release date: 2015-09-16) footnote Full support	Samsung Internet – Full support Samsung Internet 2 (Release date: 2014-10-17) footnote Full support	WebView Android – Full support WebView Android 4.4 (Release date: 2013-12-09) footnote Full support	WebView on iOS – Full support WebView on iOS 9 (Release date: 2015-09-16) footnote Full support

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