examples/map/js/backbone.marionette.js
function(item, ItemViewType, itemViewOptions){
    var options = _.extend({model: item}, itemViewOptions);
    return new ItemViewType(options);
  }
function(item, ItemViewType, itemViewOptions){
    var options = _.extend({model: item}, itemViewOptions);
    return new ItemViewType(options);
  }
function ( item , ItemViewType , itemViewOptions ) { var options = _ . extend ( { model : item } , itemViewOptions ) ; return new ItemViewType ( options ) ; }
Build an `itemView` for every model in the collection.
Build an itemView for every model in the collection .