pubsub.js

pubsub.js

var App = {};
App.cache = {};
App.uniqueId = 0;

App.publish = function(channel, data){
  for(var index in App.cache[channel])
    App.cache[channel][index](data);	
}

App.subscribe = function(channel, handler){
  if(!App.cache[channel])
    App.cache[channel] = {};	

  App.cache[channel][App.uniqueId] = handler;
  return App.uniqueId++;
}

App.unsubscribe = function(channel, id){
  delete App.cache[channel][id];
}



/* Usage

var handlerId = App.subscribe('brianchannel', function(message){ console.log(message); })

App.publish('brianchannel', 'brian is the best')

App.unsubscribe('brianchannel', handlerId);

*/

/* OUTPUT

brian is the best

*/