Backbone handy walk the application object to bridge event triggered to function calls

app.js

(function(exports) {

  // change app to whatever.
  var app = exports.app = Object.create(_.extend({}, Backbone.Events, {
    // map over the backbone api to an EventEmitter like one
    emit: Backbone.Events.trigger
  }));

  // top-level application namespaces
  app.controllers = {};
  app.model = {};
  app.ui = {};

  // handy walk the application object to bridge event triggered to function calls
  //
  //    app.emit('ui:panel:change');
  //    // invoke the app.ui.panel.change method
  //
  app.on('all', function(ev) {
    var parts = ev.split(':'),
      args = Array.prototype.slice.call(arguments, 1);

    if(parts.length < 2) return;
    var memo = app;
    parts.forEach(function(name) {
      var ns = memo[name];
      if(!ns) return;
      // invoke!
      if(typeof ns === 'function') return ns.apply(memo, args);
      // or continue the walk through
      memo = ns;
    });
  });
})(this);