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.
Syntax
IntersectionObserver.unobserve(target);
Parameters
target- The
Elementto 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. |
Editor's 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.
| Feature | Android | 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.