javascript - selfish how to call parent initializer -

i'm using selfish javascript library make inheritance in javascript easier. example have 2 objects

var foo = base.extend({       initialize: function(){         this.some_param = 1;       }     }),     bar = base.extend({       initialize: function(){         this.another_param = 2;       }     }); 

how call bar initializer foo initializer?

var foo = base.extend({       initialize: function(){         this.some_param = 1;       }     }),     bar = base.extend({       initialize: function(){         foo.initialize.call(this); // <------- here         this.another_param = 2;       }     });