AngularJS Developer Interview Question:

Tell me what makes the angular.copy() method so powerful?

Submitted by: Muhammad

It creates a deep copy of the variable.

A deep copy of a variable means it doesn't point to the same memory reference as that variable. Usually assigning one variable to another creates a “shallow copy”, which makes the two variables point to the same memory reference. Therefore if we change one, the other changes as well
Submitted by: Muhammad