jq-publish-subscribe.js

(function($) {
  var o = $({});
  $.subscribe = function() {
    o.on.apply(o, arguments);
  };
  $.unsubscribe = function() {
    o.off.apply(o, arguments);
  };
  $.publish = function() {
    o.trigger.apply(o, arguments);
  };
}(jQuery));
			
// Usage:
// Super-basic example:
function handle(e, a, b, c) {
  // `e` is the event object, you probably don't care about it.
  console.log(a + b + c);
};
$.subscribe("/some/topic", handle);
$.publish("/some/topic", [ "a", "b", "c" ]);
// logs: abc
$.unsubscribe("/some/topic", handle); // Unsubscribe just this handler
// Or:
$.subscribe("/some/topic", function(e, a, b, c) {
  console.log(a + b + c);
});
$.publish("/some/topic", [ "a", "b", "c" ]);
// logs: abc
// Unsubscribe all handlers for this topic
$.unsubscribe("/some/topic");