Using ES6 Classes as Angular 1.x directives

Question

I\'m doing a small project to play around the goody bag the ES6 is bringing, I\'m trying to set register a class as an angular directive, but I\'m running into this error \"

Answer 1

I faced the same problem. First time I tried to solve problem via ES6 classes but I have problem with $inject my dependencies. After I realized what angular have couple styles of writing code and I tried. At all I used John Papa styles and I got this works code in my rails app with ES6:

((angular) => {
 'use strict';

  var Flash = ($timeout) => {
   return {
     restrict: 'E',
     scope: {
       messages: '=messages'
     },
     template: (() => {
       return "
" +
                "
 × 
" +
                "{{ message[1] }}" +
              "";
     }),
     link: (scope) => {
       scope.closeMessage = (index) => {
         scope.messages.splice(index, 1)
       };

      $timeout(() => {
        scope.messages = []
      }, 5000);
    }
  }
};

Flash.$inject = ['$timeout'];

angular.module('Application').directive('ngFlash', Flash);

})(window.angular);

I know that I can do little bit improvements with functions and variables in more ES6 style. I hope it helps.