The IntersectionObserverEntry
interface of the Intersection Observer API describes the intersection between the target element and its root container at a specific moment of transition. Instances of IntersectionObserverEntry
are delivered to an IntersectionObserver
callback in its entries
parameter; otherwise, these objects can only be obtained by calling IntersectionObserver.takeRecords()
.
Properties
IntersectionObserverEntry.boundingClientRect
Read only- Returns the bounds rectangle of the target element as a
DOMRectReadOnly
. The bounds are computed as described in the documentation forElement.getBoundingClientRect()
. IntersectionObserverEntry.intersectionRatio
Read only- Returns the ratio of the
intersectionRect
to theboundingClientRect
. IntersectionObserverEntry.intersectionRect
Read only- Returns a
DOMRectReadOnly
representing the target's visible area. IntersectionObserverEntry.isIntersecting
Read only- A Boolean value which is
true
if the target element intersects with the intersection observer's root. If this istrue
, then, theIntersectionObserverEntry
describes a transition into a state of intersection; if it'sfalse
, then you know the transition is from intersecting to not-intersecting. IntersectionObserverEntry.rootBounds
Read only- Returns a
DOMRectReadOnly
for the intersection observer's root. IntersectionObserverEntry.target
Read only- The
Element
whose intersection with the root changed. IntersectionObserverEntry.time
Read only- A
DOMHighResTimeStamp
indicating the time at which the intersection was recorded, relative to theIntersectionObserver
's time origin.
Methods
This interface has no methods.
Specifications
Specification | Status | Comment |
---|---|---|
Intersection Observer The definition of 'IntersectionObserverEntry' 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 | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
IntersectionObserverEntry | Chrome Full support 51 | Edge Full support 15 | Firefox
Full support
55
| IE No support No | Opera Full support Yes | Safari Full support 12.1 | WebView Android Full support 51 | Chrome Android Full support 51 | Firefox Android ? | Opera Android ? | Safari iOS ? | Samsung Internet Android Full support 5.0 |
boundingClientRect | 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 |
intersectionRatio | 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 |
intersectionRect | 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 |
isIntersecting | Chrome Full support 51 | Edge Full support 16 | Firefox
Full support
55
| IE No support No | Opera Full support Yes | Safari Full support 12.1 | WebView Android Full support 51 | Chrome Android Full support 51 | Firefox Android ? | Opera Android ? | Safari iOS ? | Samsung Internet Android Full support 5.0 |
rootBounds | 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 |
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 |
time | 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.