Class StandardEventTarget

标准化的 EventTarget 基类继承原生 EventTarget，提供标准的事件管理方法

Hierarchy (View Summary)

EventTarget
- StandardEventTarget
  - Base

Index

Constructors

Methods

addEventListener removeEventListener dispatchEvent dispatchCustomEvent dispatchBuiltInEvent hasEventListener getListenerCount removeAllListeners addEventListenerWithAbort

Constructors

constructor

new StandardEventTarget(): StandardEventTarget
Returns StandardEventTarget
Inherited from EventTarget.constructor
- Defined in node_modules/typescript/lib/lib.dom.d.ts:8228

Methods

addEventListener

addEventListener(
    type: string,
    listener: null | EventListener | EventListenerObject,
    options?: boolean | AddEventListenerOptions,
): void
添加事件监听器（标准方法）
Parameters
- type: string
  事件类型
- listener: null | EventListener | EventListenerObject
  事件监听器
- Optionaloptions: boolean | AddEventListenerOptions
  选项
Returns void
Overrides EventTarget.addEventListener
- Defined in src/StandardEventTarget.ts:12

removeEventListener

removeEventListener(
    type: string,
    listener: null | EventListener | EventListenerObject,
    options?: boolean | EventListenerOptions,
): void
移除事件监听器（标准方法）
Parameters
- type: string
  事件类型
- listener: null | EventListener | EventListenerObject
  事件监听器
- Optionaloptions: boolean | EventListenerOptions
  选项
Returns void
Overrides EventTarget.removeEventListener
- Defined in src/StandardEventTarget.ts:26

dispatchEvent

dispatchEvent(event: Event): boolean
分发事件（标准方法）
Parameters
- event: Event
  事件对象
Returns boolean
是否被取消
Overrides EventTarget.dispatchEvent
- Defined in src/StandardEventTarget.ts:39

dispatchCustomEvent

dispatchCustomEvent<T = any>(
    type: string,
    detail?: T,
    options?: CustomEventInit<T>,
): boolean
创建并分发自定义事件
Type Parameters
- T = any
Parameters
- type: string
  事件类型
- Optionaldetail: T
  事件详情
- Optionaloptions: CustomEventInit<T>
  事件选项
Returns boolean
是否被取消
- Defined in src/StandardEventTarget.ts:50

dispatchBuiltInEvent

dispatchBuiltInEvent(type: string, options?: EventInit): boolean
创建并分发内置事件
Parameters
- type: string
  事件类型
- Optionaloptions: EventInit
  事件选项
Returns boolean
是否被取消
- Defined in src/StandardEventTarget.ts:70

hasEventListener

hasEventListener(type: string): boolean
检查是否有指定类型的事件监听器
Parameters
- type: string
  事件类型
Returns boolean
是否有监听器
- Defined in src/StandardEventTarget.ts:84

getListenerCount

getListenerCount(type: string): number
获取事件监听器数量（近似值）
Parameters
- type: string
  事件类型
Returns number
监听器数量
- Defined in src/StandardEventTarget.ts:95

removeAllListeners

removeAllListeners(type: string): void
移除指定类型的所有事件监听器
Parameters
- type: string
  事件类型
Returns void
- Defined in src/StandardEventTarget.ts:105

addEventListenerWithAbort

addEventListenerWithAbort(
    type: string,
    listener: null | EventListener | EventListenerObject,
    options?: AddEventListenerOptions,
    signal?: AbortSignal,
): () => void
使用 AbortController 添加事件监听器
Parameters
- type: string
  事件类型
- listener: null | EventListener | EventListenerObject
  事件监听器
- Optionaloptions: AddEventListenerOptions
  选项
- Optionalsignal: AbortSignal
  AbortSignal
Returns () => void
清理函数
- Defined in src/StandardEventTarget.ts:119