Javascript cloning object

Cloning Objects in Javascript

This example illustrates how to clone an object in javascript. It would allow to call clone() on any object to make a copy of the respective object.

Object.prototype.clone = function () { // prototype for clone method in object
function c(o) {
for (var i in o) {
this[i] = o[i];
}
}
return new c(this);
};

var t = new Object();
t.test = "xyz";
t.setTest = function(a) {
this.test = a;
}

t.getTest = function () {
return this.test;
}

alert(t.getTest());
var u = t.clone(); // cloning of object
u.setTest("abc");
alert(u.getTest());
alert(t.getTest());