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• 句法
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

CustomEvent.initCustomEvent() method initializes a CustomEvent object. If the event has already been dispatched, this method does nothing.

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.

注意： Rather than using the feature, instead use specific event constructors, like CustomEvent() . The page on 创建和触发事件 gives more information about the way to use those.

句法

event.initCustomEvent(type, canBubble, cancelable, detail);
					

参数

type

是 DOMString containing the name of the event.

canBubble

是 布尔 indicating whether the event bubbles up through the DOM or not.

cancelable

是 布尔 indicating whether the event is cancelable.

detail

The data passed when initializing the event.

规范

规范	状态	注释
DOM The definition of 'CustomEvent' in that specification.	实时标准	Initial definition, but already deprecated in favor of the use of a constructor, CustomEvent()

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
initCustomEvent 弃用	Chrome Yes Yes 59 canBubble , cancelable ，和 detail are optional parameters defaulting to false , false ，和 null 分别。	Edge 14	Firefox 6	IE 9	Opera 11	Safari 5.1	WebView Android Yes Yes 59 canBubble , cancelable ，和 detail are optional parameters defaulting to false , false ，和 null 分别。	Chrome Android Yes Yes 59 canBubble , cancelable ，和 detail are optional parameters defaulting to false , false ，和 null 分别。	Firefox Android 6	Opera Android Yes	Safari iOS Yes	Samsung Internet Android Yes Yes 7.0 canBubble , cancelable ，和 detail are optional parameters defaulting to false , false ，和 null 分别。

图例

完整支持

完整支持

弃用。不要用于新网站。

弃用。不要用于新网站。

见实现注意事项。

另请参阅

• CustomEvent
• The constructor to use instead of this deprecated method: CustomEvent() .

元数据

• 最后修改： Dec 27, 2019

相关话题

1. DOM (文档对象模型)
2. CustomEvent
3. 构造函数

   1. CustomEvent()
4. 特性

   1. detail
5. 方法

   1. initCustomEvent()
6. 继承：

   1. 事件
7. DOM 相关页面

   1. AbortController
   2. AbortSignal
   3. AbstractRange
   4. Attr
   5. ByteString
   6. CDATASection
   7. CSSPrimitiveValue
   8. CSSValue
   9. CSSValueList
   10. CharacterData
   11. ChildNode
   12. 注释
   13. DOMConfiguration
   14. DOMError
   15. DOMErrorHandler
   16. DOMException
   17. DOMImplementation
   18. DOMImplementationList
   19. DOMImplementationRegistry
   20. DOMImplementationSource
   21. DOMLocator
   22. DOMObject
   23. DOMParser
   24. DOMPoint
   25. DOMPointInit
   26. DOMPointReadOnly
   27. DOMRect
   28. DOMString
   29. DOMTimeStamp
   30. DOMTokenList
   31. DOMUserData
   32. Document
   33. DocumentFragment
   34. DocumentType
   35. 元素
   36. ElementTraversal
   37. Entity
   38. EntityReference
   39. 事件
   40. EventTarget
   41. HTMLCollection
   42. MutationObserver
   43. 节点
   44. NodeFilter
   45. NodeIterator
   46. NodeList
   47. NonDocumentTypeChildNode
   48. ProcessingInstruction
   49. PromiseResolver
   50. 范围
   51. StaticRange
   52. 文本
   53. TextDecoder
   54. TextEncoder
   55. TimeRanges
   56. TreeWalker
   57. TypeInfo
   58. USVString
   59. UserDataHandler
   60. XMLDocument