jquery - Javascript Prototype Pattern - Feedback -

i'm switching using javascript revealing module pattern , have below seems work. want know if i'm doing correct , follow best practices. example, way i'm preserving 'this' state , calling init function in constructor correct?

var testapp = function(){     //kick off     this.init(); };  testapp.prototype = {     getusers: function(callback){         //do stuff     },     buildusertable: function(data){         //do stuff     },     refreshtable: function(){         //example         this.getusers();     },     init: function(){         //preserve 'this'         var instance = this;         //callback + init         this.getusers(function(data){             instance.buildusertable(data);         });          $('.formsection .content').hide();         $('.formsection .content:first').slidedown('slow').addclass('selected');     } };  window.onload = function () {     var form = new testapp(); }; 

you're overriding prototype completely. can't deal inheritance way.

since {} object implicitly inheriting object nothing else.

inheritance looks this:

function a() {}; function b() {}; b.prototype = new a(); var b = new b(); console.log(b instanceof a); // "true" 

b inherits a , object.

if do:

b.prototype = {     foo: function () {} };  var b = new b(); console.log(b instanceof a); // "false" 

you're not longer inhering a;

how add functions prototype? use notation:

b.prototype.foo = function () {};