Class EventEmitter

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76521

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34342 >= 2.2204.13

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876521 >= 2.2222.8

Hierarchy (View Summary)

Constructors

constructor

Methods

bind emit isListening listenTo listenToAndRun listenToOnce off on once removeAllListeners removeListener stopListening trigger unbind

Constructors

constructor

Methods

bind

  • bind(eventName: Event, listener: Listener, context?: any): this

  • Alias of on

    Parameters

    • eventName: Event
    • listener: Listener
    • Optionalcontext: any

    Returns this

    Alias

    on

emit

isListening

listenTo

  • listenTo(context: any, eventName: Event, listener?: Listener): this

  • Parameters

    • context: any

      The value of this provided for the call to listener

    • eventName: Event

      The name of the event.

    • Optionallistener: Listener

      The callback function.

    Returns this

listenToAndRun

  • listenToAndRun(context: any, eventName: Event, listener?: Listener): this

  • Parameters

    • context: any

      The value of this provided for the call to listener

    • eventName: Event

      The name of the event.

    • Optionallistener: Listener

      The callback function.

    Returns this

listenToOnce

  • listenToOnce(context: any, eventName: Event, listener?: Listener): this

  • Parameters

    • context: any

      The value of this provided for the call to listener

    • eventName: Event

      The name of the event.

    • Optionallistener: Listener

      The callback function.

    Returns this

off

  • off(eventName?: Event, listener?: Listener, context?: any): this

  • Removes the specified listener from the listener array for the event named eventName.

    Parameters

    • OptionaleventName: Event

      The name of the event.

    • Optionallistener: Listener

      The callback function.

    • Optionalcontext: any

      The value of this provided for the call to listener

    Returns this

    Returns a reference to the EventEmitter, so that calls can be chained.

on

  • on(eventName: Event, listener: Listener, context?: any): this

  • Adds the listener function to the end of the listeners array for the event named eventName.

    Parameters

    • eventName: Event

      The name of the event.

    • listener: Listener

      The callback function.

    • Optionalcontext: any

      The value of this provided for the call to listener

    Returns this

    Returns a reference to the EventEmitter, so that calls can be chained.

once

  • once(eventName: Event, listener: Listener, context?: any): this

  • Adds a one-time listener function for the event named eventName.

    Parameters

    • eventName: Event

      The name of the event.

    • listener: Listener

      The callback function.

    • Optionalcontext: any

      The value of this provided for the call to listener

    Returns this

    Returns a reference to the EventEmitter, so that calls can be chained.

removeAllListeners

removeListener

  • removeListener(eventName?: Event, listener?: Listener, context?: any): this

  • Alias of off

    Parameters

    • OptionaleventName: Event
    • Optionallistener: Listener
    • Optionalcontext: any

    Returns this

    Alias

    off

stopListening

  • stopListening(context?: any, eventName?: Event, listener?: Listener): this

  • Parameters

    • Optionalcontext: any
    • OptionaleventName: Event
    • Optionallistener: Listener

    Returns this

trigger

  • trigger(eventName: Event, ...args: any[]): this

  • Synchronously calls each of the listeners registered for the event named eventName, in the order they were registered, passing the supplied arguments to each.

    Parameters

    • eventName: Event
    • ...args: any[]

    Returns this

    Returns a reference to the EventEmitter, so that calls can be chained.

unbind

  • unbind(eventName?: Event, listener?: Listener, context?: any): this

  • Alias of off

    Parameters

    • OptionaleventName: Event
    • Optionallistener: Listener
    • Optionalcontext: any

    Returns this

    Alias

    off

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