anchor.diff:      app.controller('myCtrl', ['$scope', 'filterFilter', function ($scope) {
   
   
  -        $scope.playing = [];
           $scope.teamWhite = [];
           $scope.teamRed = [];
  -
  -        // helper method to get selected fruits
  -        $scope.playing = function playing() {
  -            return filterFilter($scope.players, {playing: true});
  -        };
  -
  -        // watch fruits for changes
  -        $scope.$watch('players|filter:{playing:true}', function (nv) {
  -            $scope.playing = nv.map(function (player) {
  -                return player;
  -            });
  -        }, true);
   
           $scope.checkAll = function () {
               if ($scope.selectedAll) {
  
positive.code:             <td  ></td>
              <td >
                  <table  >
                      <tr ng-repeat="player in playing">
                          <td style="color: red">&LessLess; </td>
                          <td> {{ player.id }}</td>
                          <td style="color: white">&GreaterGreater;</td>
  
negative.code:             <input
                      type="checkbox"
                      ng-model="player.playing"
              >
              <span>
                  {{ player.id }}
  