how to display youtube thumbnail image from url with Angularjs

I just start to using angularjs and I want to display youtube thumbnail image from the youtube video url ... is there a way to display video thumbnail when people insert url in input and then click the button,

PLUNKER

http://plnkr.co/edit/9SBbTaDONuNXvOQ7lkWe?p=preview

Youtube provide default thumbnail image of its video.

You can use below sample URL to create thumbnail image.

http://img.youtube.com/vi/<insert-youtube-video-id-here>/default.jpg

Where you need to search id from the given url & create url like above will give you thumbnail image.

Controller

app.controller('MyCtrl', ['$scope',
  function($scope) {
    $scope.inputs = [];

    $scope.addInput = function() {
      $scope.inputs.push({
        field: ''
      });
    }

    $scope.removeInput = function(index) {
      $scope.inputs.splice(index, 1);
    }

    $scope.set2 = function($ayd) {
      var thumb = getParameterByName(this.input.ayd, 'v'),
        url = 'http://img.youtube.com/vi/' + thumb + '/default.jpg';
      this.thumb = url
    }

    function getParameterByName(url, name) {
      name = name.replace(/[\[]/, "\\[").replace(/[\]]/, "\\]");
      var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"),
        results = regex.exec(url);
      return results === null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));
    }
  }
]);

There many ways to do this, you can refer from here

Working Plunkr Here