On Dec 25, 3:53 pm, sladda <cbe...@web.de> wrote:
>
> What am I doing wrong?
You are missing the point that geocoding takes a bit of time, which is
why it's implemented as an asynchronous function.
In this code,
geocoder.getLatLng( address, function(point) {
newPoint = point;
alert(newPoint);
});
return newPoint;
The geocoder request is fired and [in the background] the function is
set ready to receive the result. Meanwhile code execution goes on to
"return newPoint" which is still undefined. At some point the geocoder
returns the result and function(point){...} is executed. At that
point, newPoint becomes defined.
Everything which is dependent upon the result of the geocoder
operation must be within the callback function. There is no
synchronous (statement-by-statement) operation. To do what you want to
do, you need the alert() statement inside the callback function --
that works, as you have found. You can't pass the result back in the
way you want.
Andrew
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