todomvc/examples/backbone_marionette_require/js/controllers/index.js

> Helping you select an MV\* framework

/*global define */
define([
	'app'
], function (app) {
	'use strict';

	return {
		setFilter: function (param) {
			app.vent.trigger('todoList:filter', param && param.trim() || '');
		}
	};
});