Event.initEvent()

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弃用
This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the 兼容性表格 at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

Event.initEvent() method is used to initialize the value of an event created using Document.createEvent() .

Events initialized in this way must have been created with the Document.createEvent() method. This method must be called to set the event before it is dispatched, using EventTarget.dispatchEvent() . Once dispatched, it doesn't do anything anymore.

Do not use this method anymore as it is deprecated.

Instead use specific event constructors, like Event() . The page on 创建和触发事件 gives more information about the way to use these.

句法

event.initEvent(type, bubbles, cancelable);

type: 是 DOMString defining the type of event.
bubbles: 是 布尔 deciding whether the event should bubble up through the event chain or not. Once set, the read-only property Event.bubbles will give its value.
cancelable: 是 布尔 defining whether the event can be canceled. Once set, the read-only property Event.cancelable will give its value.

范例

// Create the event.
var event = document.createEvent('Event');

// Create a click event that bubbles up and
// cannot be canceled 
event.initEvent('click', true, false);
// Listen for the event.
elem.addEventListener('click', function (e) {
  // e.target matches elem
}, false);
elem.dispatchEvent(event);

规范

规范	状态	注释
DOM The definition of 'Event.initEvent()' in that specification.	实时标准	从 DOM (文档对象模型) 2 级事件规范 , deprecated it, superseded by event constructors.
DOM (文档对象模型) 2 级事件规范 The definition of 'Event.initEvent()' in that specification.	过时	初始定义。

浏览器兼容性

The compatibility table on 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
`initEvent` 弃用	Chrome Yes	Edge 12	Firefox 17 17 不支持 ? — 17 Before Firefox 17, a call to this method after the dispatching of the event raised an exception instead of doing nothing.	IE Yes	Opera Yes	Safari Yes	WebView Android Yes	Chrome Android Yes	Firefox Android 17 17 不支持 ? — 17 Before Firefox 17, a call to this method after the dispatching of the event raised an exception instead of doing nothing.	Opera Android Yes	Safari iOS Yes	Samsung Internet Android Yes

图例

完整支持
弃用。不要用于新网站。

另请参阅

The constructor to use instead of this deprecated method: Event() . More specific constructors can be used too.

元数据

最后修改： 2019 年 3 月 23 日

DOM (文档对象模型)
事件
构造函数
1. 事件
特性
方法
1. composedPath
2. initEvent
3. msConvertURL()
4. preventDefault
5. stopImmediatePropagation
6. stopPropagation
事件
1. bubbles
2. cancelable
3. cancelBubble
4. composed
5. composedPath
6. currentTarget
7. defaultPrevented
8. 事件
9. eventPhase
10. initEvent
11. isTrusted
12. preventDefault
13. returnValue
14. stopImmediatePropagation
15. stopPropagation
16. target
17. timeStamp
18. type
DOM 相关页面

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