define(['underscore', 'backbone'], function LayoutModelDefine(_, Backbone) { 'use strict'; var Model = Backbone.Model; function LayoutModel() { Model.apply(this, arguments); } LayoutModel.prototype = new Model(); _.extend(LayoutModel.prototype, { url: '/data/vendor.json', defaults: function defaults() { return { title: '' }; } }); return LayoutModel; });