In Angularjs, is there a specific reason to use
The case when you do
$scope in controller the Dependency Injection injects scope based on matching the variable name
$scope, in this case using
scope as name would not work.
For case of directive the injection is position based so you can name your variable
b or any thing. The directive order for link function is
(scope, iElement, iAttrs, controller)
so first element is always scope object.