AngularJS Built-in helper Functions angular.copy
Example
The angular.copy function takes an object, array or a value and creates a deep copy of it.
angular.copy()
Example:
Objects:
let obj = {name: "vespa", occupation: "princess"};
let cpy = angular.copy(obj);
cpy.name = "yogurt"
// obj = {name: "vespa", occupation: "princess"}
// cpy = {name: "yogurt", occupation: "princess"}
Arrays:
var w = [a, [b, [c, [d]]]];
var q = angular.copy(w);
// q = [a, [b, [c, [d]]]]
At the above example angular.equals(w, q) will evaluate to true because .equals tests equality by value.
however w === q will evaluate to false because strict comparison between objects and arrays is done by reference.
