javascript access class method without initializing object -

i have class foo, can access public method bar out initializing fooobj

var foo = function(){    this.bar = function(){        console.log("i bar");    } }

i know can access bar

var fooobj = new foo(); fooobj.bar();

in other object oriented language javeif declare bar static can access class name foo.bar

there no static concept java can like

var foo = function(){    // constructor specific code }  foo.bar = function(){     console.log("i bar"); }

this how singleton defined in javascript

Braziel