jQuery Tiny Pub/Sub - v0.8

jquery.tinypubsub.js

/* jQuery Tiny Pub/Sub - v0.8 - 07/19/2018
 * http://benalman.com/
 * Copyright (c) 2011 "Cowboy" Ben Alman; Licensed MIT, GPL */

(function($) {

  var o = $({});

  $.subscribe = function() {
    o.on.apply(o, arguments);
  };

  $.unsubscribe = function() {
    o.off.apply(o, arguments);
  };
  
  $.once = function (args, callback) {
      return $.subscribe(args, callback, function () {
          callback();
          $.unsubscribe(args);
      });
  };

  $.publish = function() {
    o.trigger.apply(o, arguments);
  };

}(jQuery));