Broadcaster.js NPM

Broadcaster

The aim of this project is to provide a fast and easy way for communication between multiple objects and removing hard references.

Size

Current features

addEventListener, removeEventListener, hasEventListener and dispatchEvent
pass data when dispatch an event

Usage

node.js

  npm install broadcaster.js --save
  ....
  var Broadcaster = require('broadcaster.js');

first add the broadcaster script in your html

  <head>
  </head>
  <body>
    <script src='/dist/broadcaster.min.js'></script>
  </body>

Basic

    var showProfile = function (parameters) {
            console.log(parameters); // {type:'SHOW_PROFILE' , user_id:100}
    };

    //addEventListener
    Broadcaster.addEventListener('SHOW_PROFILE', showProfile);

    //dispatchEvent
    Broadcaster.dispatchEvent('SHOW_PROFILE', {user_id: 100});

    //hasEventListener
    console.log(Broadcaster.hasEventListener('SHOW_PROFILE', showProfile)); // true;

    //removeEventListener
    Broadcaster.removeEventListener('SHOW_PROFILE', showProfile);

Objects

    /**
     * check that there is not reference between watch , developer and dog objects.
     * broadcaster is global event emitter     */

    var APP = APP || {};

    //--- Watch
    APP.Watch = function () {
        var timer = setTimeout(function () {
            clearTimeout(timer);
            Broadcaster.dispatchEvent('TIMER_COMPLETE', {message: 'from watch'});
        }, 3000);
    };

    //--- Developer
    APP.Developer = function () {
        Broadcaster.addEventListener('TIMER_COMPLETE', this.timeCompleteHandler);
    };
    APP.Developer.prototype.timeCompleteHandler = function (parameters) {
        console.log('is time for code --> ', parameters);
    };

    //--- Dog
    APP.Dog = function () {
        Broadcaster.addEventListener('TIMER_COMPLETE', this.timeCompleteHandler);
    };
    APP.Dog.prototype.timeCompleteHandler = function (parameters) {
        console.log('is time for food --> ', parameters);
    };

    //the watch object dispatch the event 'TIMER_COMPLETE' when time is completed.
    var watch = new APP.Watch();

    //developer and dog object is waiting for listen the 'TIMER_COMPLETE' event
    new APP.Developer();
    new APP.Dog();