What is the difference in Angular controller description?

Question

Angular

app.controller('ChuckCtrl',['$scope', '$http', function($scope, $http){

}]);

app.controller('ChuckCtrl', function($scope, $http){

});

It seems to work the same way.

Answer 1

When you minify your code, the variables ($scope, $http) will change to something like (a, b) and then the second option will not work.