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已废弃
该特性已经从 Web 标准中删除，虽然一些浏览器目前仍然支持它，但也许会在未来的某个时间停止支持，请尽量不要使用该特性。
CustomEvent.initCustomEvent() 方法初始化了一个 CustomEvent object. 如果该事件已经被分发出去，则不会在初始化过程中重复触发．
这类对象一定是由 Document.createEvent() 方法创建的. 该方法被分发之前必须通过EventTarget.dispatchEvent()方法设置．一旦被分发则，则无法被重新设置．
该方法已经作废，不要在新项目中继续使用该方法.
Instead use specific event constructors, like CustomEvent(). The page on Creating and triggering events gives more information about the way to use these.
Syntax
event.initCustomEvent(type, canBubble, cancelable, detail);
Parameters
type- 类型
DOMString，事件名称. canBubble- 类型
Boolean，事件是否沿着dom树向上冒泡. cancelable- 类型
Boolean，事件是否可取消. detail- 事件初始化时传入的数据.
Specifications
| Specification | Status | Comment |
|---|---|---|
| DOM CustomEvent |
Living Standard | Initial definition, but already deprecated in favor of the use of a constructor, CustomEvent() |
Browser compatibility
We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| Basic support | (Yes) | 6 (6) | 9 | 11 | 5.1 (533.3) |
| Feature | Android | Firefox Mobile (Gecko) | IE Phone | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|
| Basic support | ? | 6.0 (6) | ? | ? | ? |
See also
CustomEvent- The constructor to use instead of this deprecated method:
CustomEvent().