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 Observer
The definition of 'IntersectionObserver.unobserve()' in that specification.
Working Draft Initial definition.

Browser compatibility

DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
unobserve
Experimental
Chrome Full support 51Edge 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 NoOpera Full support YesSafari Full support 12.1WebView Android Full support 51Chrome Android Full support 51Firefox Android ? Opera Android ? Safari iOS Full support 12.2Samsung 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.

See also