jQuery GeoLocation wrapper

geolocation.js

var GeoLocation = {
  cb: '',
  lat: '',
  lng: '',

  getPosition: function() {
    var that = this;

    if(navigator.geolocation) {
      $.when(
        this.getCurrentPositionDeferred({
          enableHighAccuracy: true
        })
      ).done(function(data) {
        that.lat = data.coords.latitude;
        that.lng = data.coords.longitude;
        that.cb();
      });
    } else {
      $.post('https://www.googleapis.com/geolocation/v1/geolocate?key=AIzaSyCI7FLO-uCXy3pn5NwznlVgBJUT1exSsRg', function(data) {
        that.lat = data.location.lat;
        that.lng = data.location.lng;
        that.cb();
      });
    }

    return this;
  },

  then(cb) {
    this.cb = cb;
    return this;
  },

  getCurrentPositionDeferred: function(options) {
    var deferred = $.Deferred();
    navigator.geolocation.getCurrentPosition(deferred.resolve, deferred.reject, options);

    return deferred.promise();
  }
}

index.html

<script>
  
  GeoLocation.getPosition().then(function() {
    console.log(GeoLocation.lat);
    console.log(GeoLocation.lng);
  });

</script>