This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The IntersectionObserverEntry
interface's read-only target
property indicates which targeted Element
has changed its amount of intersection with the intersection root.
Syntax
var target =
IntersectionObserverEntry.target;
Value
The IntersectionObserverEntry
's target
property specifies which Element
previously targeted by calling IntersectionObserver.observe()
experienced a change in intersection with the root.
Example
In this simple example, each targeted element's opacity
is set to its intersectionRatio
.
function intersectionCallback(entries) { entries.forEach(function(entry) { entry.target.opacity = entry.intersectionRatio; }); }
To see a more concrete example, take a look at Handling intersection changes in Timing element visibility with the Intersection Observer API.
Specifications
Specification | Status | Comment |
---|---|---|
Intersection Observer The definition of 'IntersectionObserverEntry.target' 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.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
target | Chrome Full support 51 | Edge Full support 15 | Firefox
Full support
55
| IE No support No | Opera Full support Yes | Safari ? | WebView Android Full support 51 | Chrome Android Full support 51 | Firefox Android ? | Opera Android ? | Safari iOS ? | 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.
- User must explicitly enable this feature.
- User must explicitly enable this feature.