In AngularJS controller can have $scope or $http parameters. These must be $scope or $http rather than s or h. Minification process removes extra spaces and convert JavaScript method parameters to single character so that it tries to convert them in single character parameters.
When we declare a controller using the module then most of us just simply specify the controller method as below:
var app = angular.module("githubViewer", []);
var MainController = function($scope, $http) {
};
app.controller("MainController", MainController);
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During the learning, I get to know that during the minification process these parameters are changes to some single character. If these are renamed then AngularJS will not able to find the $scope and $http parameter. It expect them as 6 character $scope and 5 character $http in the controller method. To avoid this happen you need manually specify the parameters name when you specify the controller name and controller method to the module.
app.controller("MainController", ["$scope", "$http", MainController]);
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Hope this help someone to avoid making this mistake..
