angular controller in typescript

Question

I am new to typescript/ecma6 and would like to write this angular controller in typescript:

.controller('DashCtrl', function($scope, wpFactory) {

$scope.posts = [];
$scope.images = {};

wpFactory.getPosts(3).then(function (succ) {
  $scope.posts = succ;
  angular.forEach(succ, function(value, index) {
    $scope.setUrlForImage(index, value.featured_image);
  });
}, function error(err) {
  console.log('Errror: ', err);
});

$scope.setUrlForImage = function(index, id) {
  wpFactory.getMediaDataForId(id).then(function (succ) {
    $scope.images[index] = succ.source_url;
  });
};

})

with my actual approach I have problems with the scope of the methods in the class:

class DashCtrl {

public $inject = ['wpFactory'];

posts: any[];
images: any[];

constructor(public wpFactory: any) {
  this.getPosts();
}
getPosts(){
  ... ?
}

setUrlForImage(succ:any, index:any, id:any){
  ... ?
}

}

The interesting part for me is how to develop the getPosts and the setUrlForImages method. Any suggestions would be appreciated.

Answer 1

class DashCtrl {

  public $inject = ['wpFactory'];

  posts: any[];
  images: any[];

  constructor(public wpFactory: any) {
    this.getPosts();
  }

  getPosts() {
    this.wpFactory.getPosts(3).then(succ => {
      this.posts = succ;
      angular.forEach(succ, (value, index) => {
        this.setUrlForImage(index, value.featured_image);
      });
    }, (err) => {
      console.log('Errror: ', err);
    });
  }

  setUrlForImage(succ:any, index:any, id:any) {
    this.wpFactory.getMediaDataForId(id).then(succ => {
      this.images[index] = succ.source_url;
    });
  }
}