IntersectionObserver.takeRecords()

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IntersectionObserver 的方法takeRecords() 返回一个 IntersectionObserverEntry 对象数组, 每个对象的目标元素都包含每次相交的信息, 可以显式通过调用此方法或隐式地通过观察者的回调自动调用.

Note: 如果使用回调来监视这些更改,则无需调用此方法。调用此方法会清除挂起的相交状态列表,因此不会运行回调。

语法

intersectionObserverEntries = intersectionObserver.takeRecords();

参数

None.

返回值

 IntersectionObserverEntry 对象数组, 每个对象包含目标元素与根每次的相交信息。

Examples

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Specifications

Specification Status Comment
Intersection Observer
IntersectionObserver.takeRecords()
Working Draft Initial definition.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
takeRecords
Experimental
Chrome Full support 51Edge Full support 15
Notes
Full support 15
Notes
Notes Available since Windows Insider Preview Build 14986
Firefox Full support 55
Full support 55
No support 53 — 55
Disabled
Disabled From version 53 until version 55 (exclusive): this feature is behind the dom.IntersectionObserver.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
IE No support NoOpera Full support YesSafari ? WebView Android Full support 51Chrome Android Full support 51Firefox 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.
See implementation notes.
See implementation notes.
User must explicitly enable this feature.
User must explicitly enable this feature.

See also