W3cubDocs

/Web APIs

IntersectionObserverEntry: boundingClientRect property

The IntersectionObserverEntry interface's read-only boundingClientRect property returns a DOMRectReadOnly which in essence describes a rectangle describing the smallest rectangle that contains the entire target element.

Value

A DOMRectReadOnly which describes the smallest rectangle that contains every part of the target element whose intersection change is being described. This value is obtained using the same algorithm as Element.getBoundingClientRect(), so refer to that article for details on precisely what is done to obtain this rectangle and what is and is not included within its bounds.

In the general case, however, it's safe to think of this as the bounds rectangle of the target element.

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
boundingClientRect 51 15 55 No 38 12.1 51 51 55 41 12.2 5.0

© 2005–2023 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/IntersectionObserverEntry/boundingClientRect