Web/API/History/length

The History.length read-only property returns an integer representing the number of elements in the session history, including the currently loaded page. For example, for a page loaded in a new tab this property returns 1.

Syntax

const length = history.length

Specifications

Specification	Status	Comment
HTML Living StandardThe definition of 'History.length' in that specification.	Living Standard	No change from HTML5.
HTML5The definition of 'History.length' in that specification.	Recommendation	Initial definition.

Browser compatibility

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.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
length	Chrome Full support Yes	Edge Full support 12	Firefox Full support Yes	IE Full support 10	Opera Full support Yes	Safari Full support Yes	WebView Android Full support Yes	Chrome Android Full support Yes	Firefox Android Full support Yes	Opera Android Full support Yes	Safari iOS Full support Yes	Samsung Internet Android Full support Yes

Legend

Full support  

Full support

See also

• The History interface it belongs to.

History.length by Mozilla Contributors is licensed under CC-BY-SA 2.5.