Looking at this library https://github.com/arunisrael/angularjs-geolocation/blob/master/src/geolocation.js#L39
I searched extensively on the internet and even checked the official Mozilla documentation regarding promises, but found no results.
I am confused about the purpose of the extra opt. When is it necessary to set this?
getLocation: function (opts) {
var deferred = $q.defer();
if ($window.navigator && $window.navigator.geolocation) {
$window.navigator.geolocation.getCurrentPosition(function(position){
$rootScope.$apply(function(){deferred.resolve(position);});
}, function(error) {
switch (error.code) {
case 1:
$rootScope.$broadcast('error',geolocation_msgs['errors.location.permissionDenied']);
$rootScope.$apply(function() {
deferred.reject(geolocation_msgs['errors.location.permissionDenied']);
});
break;
case 2:
$rootScope.$broadcast('error',geolocation_msgs['errors.location.positionUnavailable']);
$rootScope.$apply(function() {
deferred.reject(geolocation_msgs['errors.location.positionUnavailable']);
});
break;
case 3:
$rootScope.$broadcast('error',geolocation_msgs['errors.location.timeout']);
$rootScope.$apply(function() {
deferred.reject(geolocation_msgs['errors.location.timeout']);
});
break;
}
}, opts);
}
else
{
$rootScope.$broadcast('error',geolocation_msgs['errors.location.unsupportedBrowser']);
$rootScope.$apply(function(){deferred.reject(geolocation_msgs['errors.location.unsupportedBrowser']);});
}
return deferred.promise;
}