Example of Angular Directive as ES6 class with injection

ES6 Angular Directive with injection

class myDirective {
  constructor(userService) {
    this.template = `<div>{{fullName}}</div>`;
    this.restrict = 'E';
    this.scope = {
        user: '='
    };
    this.link = function(scope, element) {
      scope.fullName = userService.getFullName(scope.user);
    };
  }
}

angular.module('myApp').directive('myDirective', ['userService', 
  (userService) => new myDirective(userService)]);