这是
实验性技术
检查
浏览器兼容性表格
要小心谨慎在生产中使用这之前。
IntersectionObserverEntry
interface's read-only
rootBounds
特性为
DOMRectReadOnly
corresponding to the
target
's root intersection rectangle, offset by the
IntersectionObserver.rootMargin
if one is specified.
var rootBounds = IntersectionObserverEntry.rootBounds;
A
DOMRectReadOnly
which describes the root intersection rectangle. For roots which are the
Document
's viewport, this rectangle is the bounds rectangle of the entire document. Otherwise, it's the bounds of the root element.
This rectangle is offset by the values in
IntersectionObserver.rootMargin
.
| 规范 | 状态 | 注释 |
|---|---|---|
|
Intersection Observer
The definition of 'IntersectionObserverEntry.rootBounds' in that specification. |
工作草案 | 初始定义 |
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.
更新 GitHub 上的兼容性数据| 桌面 | 移动 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
rootBounds
|
Chrome 51 | Edge 15 |
Firefox
55
|
IE No | Opera Yes | Safari ? | WebView Android 51 | Chrome Android 51 | Firefox Android ? | Opera Android ? | Safari iOS ? | Samsung Internet Android 5.0 |
完整支持
不支持
兼容性未知
实验。期望将来行为有所改变。
用户必须明确启用此特征。
IntersectionObserverEntry