I want to assign some values when a button click event happens via event parameter:

$scope.update = function(context) {

    $scope.master = context;

};

I have assigned user values to $scope.master.

Now i am seeing angular.copy(). So I wrote the code with angular.copy.

$scope.update = function(context) {

    $scope.master = angular.copy(context)

};

Both are doing same, so what is the difference? Please tell me about the difference between angular.copy() and equal(=).