google maps api 3 - returning variable from javascript function -


i'm trying return longitude , latitude function, can console.log both of them, when try return 1 of them, undefined.

how can return latitude, longitude?

function latlong(location) {     var geocoder = new google.maps.geocoder();     var address = location;     var longitude;     var latitude;     geocoder.geocode({         'address': address     }, function (results, status) {         if (status == google.maps.geocoderstatus.ok) {             latitude = results[0].geometry.location.lat();             longitude = results[0].geometry.location.lng();         } else {             alert("geocode not successful following reason: " + status);         }         console.log(longitude);     }); }

you don't.

the used technique pass callback latlong function parameter, , run function when receive result.

something like:

function latlong(location, callback) {      var geocoder = new google.maps.geocoder();     var address = location;     var longitude;     var latitude;     geocoder.geocode({         'address': address     }, function (results, status) {         if (status == google.maps.geocoderstatus.ok) {             latitude = results[0].geometry.location.lat();             longitude = results[0].geometry.location.lng();             callback(latitude, longitude);         } else {             alert("geocode not successful following reason: " + status);         }         console.log(longitude);     }); }

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