EventTarget

Baseline Widely available *

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

* Some parts of this feature may have varying levels of support.

EventTarget 接口由可以接收事件、并且可以创建侦听器的对象实现。换句话说,任何事件目标都会实现与该接口有关的这三个方法。

Element 及其子项、documentwindow 是最常见的事件目标,但其他对象也可以是事件目标。比如 XMLHttpRequestAudioNodeAudioContext 等等。

许多事件目标(包括 elementdocumentwindow)都支持通过 onevent 特性和属性设置事件处理程序

构造函数

EventTarget()

创建一个新的 EventTarget 对象实例。

方法

EventTarget.addEventListener()

EventTarget 上注册特定事件类型的事件处理程序。

EventTarget.removeEventListener()

EventTarget 中删除事件侦听器。

EventTarget.dispatchEvent()

将事件分派到此 EventTarget

规范

Specification
DOM
# interface-eventtarget

浏览器兼容性

Report problems with this compatibility data on GitHub
desktopmobileserver
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Deno
Node.js
EventTarget
EventTarget() constructor
addEventListener
Form with options object supported (third parameter can be either options or a Boolean, for backwards compatibility)
options.capture parameter
options.once parameter
options.passive parameter
options.passive parameter defaults to true for touchstart and touchmove events
options.passive parameter defaults to true for wheel and mousewheel events
options.signal parameter
useCapture parameter is optional
dispatchEvent
removeEventListener
Form with options object supported (third parameter can be either options or a Boolean, for backwards compatibility)
useCapture parameter is optional

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
Partial support
Partial support
No support
No support
See implementation notes.
Has more compatibility info.

参见