在此页

• 特性
• 方法
• 规范
• 浏览器兼容性
• 相关话题

IntersectionObserverEntry 接口在 交集观测器 API describes the intersection between the target element and its root container at a specific moment of transition. 实例化的 IntersectionObserverEntry are delivered to an IntersectionObserver callback in its entries parameter; otherwise, these objects can only be obtained by calling IntersectionObserver.takeRecords() .

特性

IntersectionObserverEntry.boundingClientRect 只读

Returns the bounds rectangle of the target element as a DOMRectReadOnly . The bounds are computed as described in the documentation for Element.getBoundingClientRect() .

IntersectionObserverEntry.intersectionRatio 只读

Returns the ratio of the intersectionRect 到 boundingClientRect .

IntersectionObserverEntry.intersectionRect 只读

返回 DOMRectReadOnly representing the target's visible area.

IntersectionObserverEntry.isIntersecting 只读

A Boolean value which is true if the target element intersects with the intersection observer's root. If this is true , then, the IntersectionObserverEntry describes a transition into a state of intersection; if it's false , then you know the transition is from intersecting to not-intersecting.

IntersectionObserverEntry.rootBounds 只读

返回 DOMRectReadOnly for the intersection observer's root.

IntersectionObserverEntry.target 只读

元素 whose intersection with the root changed.

IntersectionObserverEntry.time 只读

DOMHighResTimeStamp indicating the time at which the intersection was recorded, relative to the IntersectionObserver 's time origin .

方法

This interface has no methods.

规范

规范	状态	注释
Intersection Observer The definition of 'IntersectionObserverEntry' in that specification.	工作草案	初始定义

浏览器兼容性

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
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
IntersectionObserverEntry	Chrome 51	Edge 15	Firefox 55 55 不支持 53 — 55 Disabled Disabled ). To change preferences in Firefox, visit	IE No	Opera Yes	Safari 12.1	WebView Android 51	Chrome Android 51	Firefox Android ?	Opera Android ?	Safari iOS ?	Samsung Internet Android 5.0
boundingClientRect	Chrome 51	Edge 15	Firefox 55 55 不支持 53 — 55 Disabled Disabled ). To change preferences in Firefox, visit	IE No	Opera Yes	Safari ?	WebView Android 51	Chrome Android 51	Firefox Android ?	Opera Android ?	Safari iOS ?	Samsung Internet Android 5.0
intersectionRatio	Chrome 51	Edge 15	Firefox 55 55 不支持 53 — 55 Disabled Disabled ). To change preferences in Firefox, visit	IE No	Opera Yes	Safari ?	WebView Android 51	Chrome Android 51	Firefox Android ?	Opera Android ?	Safari iOS ?	Samsung Internet Android 5.0
intersectionRect	Chrome 51	Edge 15	Firefox 55 55 不支持 53 — 55 Disabled Disabled ). To change preferences in Firefox, visit	IE No	Opera Yes	Safari ?	WebView Android 51	Chrome Android 51	Firefox Android ?	Opera Android ?	Safari iOS ?	Samsung Internet Android 5.0
isIntersecting	Chrome 51	Edge 16	Firefox 55 55 不支持 53 — 55 Disabled Disabled ). To change preferences in Firefox, visit	IE No	Opera Yes	Safari 12.1	WebView Android 51	Chrome Android 51	Firefox Android ?	Opera Android ?	Safari iOS ?	Samsung Internet Android 5.0
rootBounds	Chrome 51	Edge 15	Firefox 55 55 不支持 53 — 55 Disabled Disabled ). To change preferences in Firefox, visit	IE No	Opera Yes	Safari ?	WebView Android 51	Chrome Android 51	Firefox Android ?	Opera Android ?	Safari iOS ?	Samsung Internet Android 5.0
target	Chrome 51	Edge 15	Firefox 55 55 不支持 53 — 55 Disabled Disabled ). To change preferences in Firefox, visit	IE No	Opera Yes	Safari ?	WebView Android 51	Chrome Android 51	Firefox Android ?	Opera Android ?	Safari iOS ?	Samsung Internet Android 5.0
time	Chrome 51	Edge 15	Firefox 55 55 不支持 53 — 55 Disabled Disabled ). To change preferences in Firefox, visit	IE No	Opera Yes	Safari ?	WebView Android 51	Chrome Android 51	Firefox Android ?	Opera Android ?	Safari iOS ?	Samsung Internet Android 5.0

图例

完整支持

完整支持

不支持

不支持

兼容性未知 ?

兼容性未知

实验。期望将来行为有所改变。

实验。期望将来行为有所改变。

用户必须明确启用此特征。

用户必须明确启用此特征。

元数据

• 最后修改： May 4, 2020

相关话题

1. 交集观测器 API
2. IntersectionObserverEntry
3. 特性

   1. boundingClientRect
   2. intersectionRatio
   3. intersectionRect
   4. isIntersecting
   5. rootBounds
   6. target
   7. time
4. Related pages for Intersection Observer API

   1. IntersectionObserver