ee-events
installation
npm install ee-events
if an «error» event is emitted and there is no listenr for the error event a stacktrace is printed and the application exits.
API
var EventEmitter = require( "ee-event-emitter" );
var eventEmitter = new EventEmitter();
// attach listener
eventEmitter.on( "eventName", cb );
// attach listsner which is called once
eventEmitter.once( "eventName", cb );
// remove all listeners for all events
eventEmitter.off();
// remove listeners for specific event
eventEmitter.off( "eventName" );
// remove a single listener
eventEmitter.off( "eventName", listener );
// emit an event
eventEmitter.emit( "eventName", arg, arg, .... );
// get all listeners
eventEmitter.listener();
// get lsisteners for a specific event
eventEmitter.listsner( "eventName" );
// event which is emitted when an event listener is added
eventEmitter.on( "listener", function( eventName, listener ){} );
// event which is emitted when an event listener is removed
eventEmitter.on( "removeListener", function( eventName, listener ){} );
usage
var Class = require( "ee-class" )
, EventEmitter = require( "ee-event-emitter" );
var Human = new Class( {
inherits: EventEmitter
, name: ""
, age: 29
, init: function( options ){
this.name = options.name;
}
, sayHello: function( to ){
this.emit( "startHello" );
console.log( "Hi %s, my name is %s, i'm %s years old.", to, this.name, this.age );
this.emit( "endHello" );
}
} );
var Boy = new Class( {
inherits: Human
, age: 12
} );
var fabian = new Boy( {
name: "Fabian"
, on: {
startHello: function(){ console.log( "starting console output:" ); }
, endHello: function(){ console.log( "finished console output!" ); }
}
} );
fabian.sayHello( "michael" ); // starting console output:
// Hi my name is Fabian and i'm 12 years old.
// finished console output!
Version History