You're referencing the same object with copy
var gRoll = {
a:"pankaj",
b:{a:"A",b:"c"}
}
var newObject = Object.create(gRoll);
newObject.a = 'Karma';
alert(gRoll.a); //pankaj
alert(newObject.a); //Karma
Pregunta
I am using a plain JavaScript object. I have to create an exact copy of the object to make changes:
var gRoll = {a:"pankaj",b:
{
a:"A",b:"c"
}}
var copy = gRoll;
copy.a = "Karma";
This is making change in the parent object. Please give me solution to create copy of the object without referring to the old one. Same like prototype design pattern in OOPS.
Solución
You're referencing the same object with copy
var gRoll = {
a:"pankaj",
b:{a:"A",b:"c"}
}
var newObject = Object.create(gRoll);
newObject.a = 'Karma';
alert(gRoll.a); //pankaj
alert(newObject.a); //Karma
Otros consejos
what you are doing is not creating a copy but referring to the existing object with a new variable, hence the issue.
If you are using jQuery, use its extend()
method which copies an exiting object... with optional parameter for deep-copying.
http://api.jquery.com/jquery.extend/