This or scope in AngularJS?

Question

Angular

Actually the question is in the title. I know the difference, but which is better to use?

Answer 1

It is more desirable - scope, because not always directives will be able to have access to the controller.
And to scope - always.

Answer 2

Least

var self = this;
this.a = function() {
    self.b = 'c';
} // или  .bind(this)

// vs 

$scope.a = function() {
    $scope.b = 'c';
}

Answer 3

Personally, I use this. The main advantage is the ability to use Controller as Sintax. Which makes html much clearer.

<div ng-contoller="parentController">
     <div ng-contoller="childController">
         <!--Невозможно понять в каком контроллере находиться test-->
         {{test}}  
     </div>
</div>

Instead of:

<div ng-contoller="parentController as parent">
     <div ng-contoller="childController as child">
         <!--Видно откуда вызывается test-->
         {{parent.test}}  
     </div>
</div>

Answer 4

I use both: this for direct access to controller instances (see TekVanDo 's answer above), and $scope otherwise.