Watch variable and change it

Question

In AngularJS I have a directive that watches a scope variable. When the variable contains certain data then I need to alter that variable a bit. The problem is that when I c

Answer 1

you can manage it using a bool variable

$scope.someVarChanged = false;

scope.$watch('someVar', function(newValue, oldValue) {
    console.log(newValue);
    $scope.someVarChanged = !$scope.someVarChanged!;
    if($scope.someVarChanged) {            
        scope.someVar = [Do something with someVar];
    }
});