demos/animated-game/js/backbone.js
function(model, options) {
      model = this._prepareModel(model, options);
      this.add(model, _.extend({at: 0}, options));
      return model;
    }
function(model, options) {
      model = this._prepareModel(model, options);
      this.add(model, _.extend({at: 0}, options));
      return model;
    }
function ( model , options ) { model = this . _prepareModel ( model , options ) ; this . add ( model , _ . extend ( { at : 0 } , options ) ) ; return model ; }
Add a model to the beginning of the collection.
Add a model to the beginning of the collection .