Angular Directive Implementation Comparision

DirectiveImplementationStyleA.js

angular.module('eva2-angular').directive('myDirective', function ($state) {
  'use strict';

  return {
    restrict: 'A',
    link: function (scope, el) {
      if($state.current.name !== '') {
        angular.element(el).addClass($state.current.name);
      }
    }
  };
});

DirectiveImplementationStyleB.js

angular
  .module('eva2-angular')
  .directive('myDirective', myDirective);

myDirective.$inject = ['$state'];

function myDirective($state) {
  var directive = {
    controller: Controller,
    restrict: 'A',
  link: function (scope, el) {
    if($state.current.name !== '') {
      angular.element(el).addClass($state.current.name);
    }
  };
  return directive;
}