examples/map/js/backbone.marionette.js
function(item, collection, options){
    this.closeEmptyView();
    var ItemView = this.getItemView(item);
    var index = this.collection.indexOf(item);
    this.addItemView(item, ItemView, index);
  }
function(item, collection, options){
    this.closeEmptyView();
    var ItemView = this.getItemView(item);
    var index = this.collection.indexOf(item);
    this.addItemView(item, ItemView, index);
  }
function ( item , collection , options ) { this . closeEmptyView ( ) ; var ItemView = this . getItemView ( item ) ; var index = this . collection . indexOf ( item ) ; this . addItemView ( item , ItemView , index ) ; }
Handle a child item added to the collection
Handle a child item added to the collection