Document.createEvent()

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句法
范例
注意事项
规范
浏览器兼容性
另请参阅
相关话题

Many methods used with createEvent ，譬如 initCustomEvent , are deprecated. Use event constructors 代替。

创建 event of the type specified. The returned object should be first initialized and can then be passed to EventTarget.dispatchEvent .

句法

var event = document.createEvent(type);

event is the created 事件对象。
type is a string that represents the type of event to be created. Possible event types include "UIEvents" , "MouseEvents" , "MutationEvents" ，和 "HTMLEvents" 。见注意事项章节了解细节。

范例

// Create the event.
var event = document.createEvent('Event');
// Define that the event name is 'build'.
event.initEvent('build', true, true);
// Listen for the event.
elem.addEventListener('build', function (e) {
  // e.target matches elem
}, false);
// Target can be any Element or other EventTarget.
elem.dispatchEvent(event);

注意事项

Event type strings suitable for passing to createEvent() are listed in the DOM standard — see the table in step 2 . Bear in mind that most event objects now have constructors, which are the modern recommended way to create event object instances.

Gecko supports some non-standard event object aliases, which are listed below.

Event Module	Standard event object	Gecko also supports
Text event module	`TextEvent`	`TextEvents`
Keyboard event module	`KeyboardEvent`	`KeyEvents`
Basic events module	`事件`	`事件`

规范

规范	状态	注释
DOM The definition of 'document.createEvent' in that specification.	实时标准

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
`createEvent`	Chrome 1	Edge 12	Firefox 1 1 From version 67, creating touch events using this method is no longer supported.	IE 9	Opera 7	Safari 1	WebView Android 1	Chrome Android 18	Firefox Android 4	Opera Android 10.1	Safari iOS 1	Samsung Internet Android 1.0

图例

完整支持

另请参阅

创建和触发事件

元数据

最后修改： Jan 8, 2020

在此页

句法

范例

注意事项

规范

浏览器兼容性

图例

另请参阅

相关话题