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angular.copy

  1. - function in module ng

Creates a deep copy of source, which should be an object or an array.

Usage

angular.copy(source, [destination]);

Arguments

Param Type Details
source *

The source that will be used to make a copy. Can be any type, including primitives, null, and undefined.

destination
(optional)
ObjectArray

Destination into which the source is copied. If provided, must be of the same type as source.

Returns

*

The copy or updated destination, if destination was specified.

Example

<div ng-controller="ExampleController">
<form novalidate class="simple-form">
Name: <input type="text" ng-model="user.name" /><br />
E-mail: <input type="email" ng-model="user.email" /><br />
Gender: <input type="radio" ng-model="user.gender" value="male" />male
<input type="radio" ng-model="user.gender" value="female" />female<br />
<button ng-click="reset()">RESET</button>
<button ng-click="update(user)">SAVE</button>
</form>
<pre>form = {{user | json}}</pre>
<pre>master = {{master | json}}</pre>
</div>

<script>
 angular.module('copyExample', [])
   .controller('ExampleController', ['$scope', function($scope) {
     $scope.master= {};

     $scope.update = function(user) {
       // Example with 1 argument
       $scope.master= angular.copy(user);
     };

     $scope.reset = function() {
       // Example with 2 arguments
       angular.copy($scope.master, $scope.user);
     };

     $scope.reset();
   }]);
</script>