Web/API/IntersectionObserver/unobserve

The IntersectionObserver method unobserve() instructs the IntersectionObserver to stop observing the specified target element.

Syntax

IntersectionObserver.unobserve(target);

Parameters

target: The Element to cease observing. If the specified element isn't being observed, this method does nothing and no exception is thrown.

Return value

undefined.

Example

This snippet simply shows an observer being created, an element being observed, and then being unobserved.

var observer = new IntersectionObserver(callback);
observer.observe(document.getElementById("elementToObserve"));

/* ... */

observer.unobserve(document.getElementById("elementToObserve"));

Specifications

Specification	Status	Comment
Intersection ObserverThe definition of 'IntersectionObserver.unobserve()' in that specification.	Working Draft	Initial definition.

Browser compatibility

The compatibility table in 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
`unobserve` Experimental'	Chrome Full support 51	Edge Full support 15 Notes' Full support 15 Notes' Notes' Available since Windows Insider Preview Build 14986	Firefox Full support 55 Full support 55 No support 53 — 55 Disabled' Disabled' From version 53 until version 55 (exclusive): this feature is behind the `dom.IntersectionObserver.enabled` preference (needs to be set to `true`). To change preferences in Firefox, visit about:config.	IE No support No	Opera Full support Yes	Safari Full support 12.1	WebView Android Full support 51	Chrome Android Full support 51	Firefox Android ?	Opera Android ?	Safari iOS Full support 12.2	Samsung Internet Android Full support 5.0

Legend

Full support: Full support
No support: No support
Compatibility unknown: Compatibility unknown
Experimental. Expect behavior to change in the future.': Experimental. Expect behavior to change in the future.
See implementation notes.': See implementation notes.
User must explicitly enable this feature.': User must explicitly enable this feature.