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This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.

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




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

Return value



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

var observer = new IntersectionObserver(callback);

/* ... */



Specification Status Comment
Intersection Observer
The definition of 'IntersectionObserver.unobserve()' in that specification.
Editor's Draft Initial definition.

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic Support51151

53 — 552


No ? ?
FeatureAndroidChrome for AndroidEdge mobileFirefox for AndroidIE mobileOpera AndroidiOS Safari
Basic Support5151 (Yes) ? No ? ?

1. Available since Windows Insider Preview Build 14986

2. 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.

See also

Document Tags and Contributors

 Contributors to this page: fscholz, Sheppy, robtpaton, UsainBloot, mattjburrows
 Last updated by: fscholz,