Testing ngCordova geolocation watchPosition and getCurrentPosition function

controllers.js

.controller('DashCtrl', function($scope, $ionicPlatform, $cordovaGeolocation) {
  var watch;
  var watchOptions = {
    timeout : 5000,
    maximumAge: 3000,
    enableHighAccuracy: true // may cause errors if true
  };

  var pollCurrentLocation = function() {
    $cordovaGeolocation.getCurrentPosition(watchOptions)
      .then(function (position) {
        var lat  = position.coords.latitude
        var long = position.coords.longitude

        console.log('polling lat long', lat, long);
        $scope.lastPollingLocation.lat = $scope.currentPollingLocation.lat;
        $scope.lastPollingLocation.long = $scope.currentPollingLocation.long;

        $scope.currentPollingLocation.lat = lat;
        $scope.currentPollingLocation.long = long;
      }, function(err) {
        // error
        console.log("polling error", err);
      });

    setTimeout(pollCurrentLocation, 1000);
  };

  var watchCurrentLocation = function() {
    watch = $cordovaGeolocation.watchPosition(watchOptions);
    watch.then(
      null,
      function(err) {
        // error
        console.log("watch error", err);
      },
      function(position) {
        var lat  = position.coords.latitude
        var long = position.coords.longitude

        console.log('lat long', lat, long);
        $scope.lastLocation.lat = $scope.currentLocation.lat;
        $scope.lastLocation.long = $scope.currentLocation.long;

        $scope.currentLocation.lat = lat;
        $scope.currentLocation.long = long;
    });
  };

  $scope.lastLocation = {
    lat: null,
    long: null
  };

  $scope.currentLocation = {
    lat: null,
    long: null
  };

  $scope.lastPollingLocation = {
    lat: null,
    long: null
  };

  $scope.currentPollingLocation = {
    lat: null,
    long: null
  };

  $ionicPlatform.ready(function() {
    watchCurrentLocation();

    pollCurrentLocation();
  });

  $scope.$on("$destroy", function() {
    if (watch) {
      watch.clearWatch();
    }
  });

})