javascript - Function is undefined in JS object -

i create object var myobj = new functon () {...}. in object add functions :

var myobj = new function () {    this.func1 = function() {        func2();    }    this.func2 = function() {        ...    } } 

as can see in func1 try call func2 undefined. why? cause in 1 object.

change scripts to

var myobj = function () {    var self = this;     this.func1 = function () {        self.func2();    };     this.func2 = function () {        ...    }; };