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IntersectionObserver.unobserve

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

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.

Examples

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

Feature Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 51 151

53 — 552

55

No ? ?
Feature Android webview Chrome for Android Edge mobile Firefox for Android IE mobile Opera Android iOS Safari
Basic support 51 51 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

© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/IntersectionObserver/unobserve