npm install @zero-dependency/emitter
yarn add @zero-dependency/emitter
pnpm add @zero-dependency/emitter
import{Emitter}from'@zero-dependency/emitter'typeEvents={message: (msg: string)=>void}constevents=newEmitter<Events>()functiononMessage(msg: string): void{}// Adds the listener function for the event named message.events.on('message',onMessage)// Adds a one-time listener function for the event named message.// The next time message is triggered, this listener is removed and then invoked.events.once('message',onMessage)// Synchronously calls each of the listeners registered for the event named message,// in the order they were registered, passing the supplied arguments to each.// Returns true if the event had listeners, false otherwise.events.emit('message','hello world')// Removes the specified listener from the listener array for the event named message.events.off('message',onMessage)// Removes all listeners, or those of the specified message.events.removeAllListeners('message')// Removes all listeners for events.events.removeAllListeners()// Returns an array listing the events for which the emitter has registered listeners.// The values in the array are strings or Symbols.events.eventNames()// Returns an array of listeners for an event named message.events.listeners('message')// Returns the number of listeners listening to the event named message.events.listenerCount('message')
