@guanghechen/event-bus

A simple event bus.

Install

npm install --save @guanghechen/event-bus

• yarn

  yarn add @guanghechen/event-bus

Usage

• Basic

  import type { IEvent, IEventHandler } from '@guanghechen/event-bus'
  import { EventBus } from '@guanghechen/event-bus'
  
  enum EventTypes {
    INIT = 'INIT',
    EXIT = 'EXIT',
  }
  
  const eventBus = new EventBus<EventTypes>()
  
  const handle: IEventHandler<EventTypes> = (evt: IEvent<EventTypes>) => {
    console.log('evt:', evt)
  }
  
  // Listen for specific event
  eventBus.on(EventTypes.INIT, handle)
  
  // Listen for specific event, and only need to be called once
  eventBus.once(EventTypes.INIT, handle)
  
  // Listen for all events
  eventBus.subscribe(handle, true)
  
  // Remove listener
  eventBus.removeListener(EventTypes.INIT, handle)
  
  // Remove subscriber
  eventBus.unsubscribe(handle)