javascript return value is always undefined

Question

I\'m trying to retrieve the 2 attributes of seprated function and I debug there values before the end of the function and they have a value but the return value is alwas und

Answer 1

You are returning in the anonymous function and this value is never assigned to anything. You can do what you want with a callback.

// untested code, hope it works
function STAAPlanlat(callback){
    alert ("the function");
    if (navigator.geolocation) {
        navigator.geolocation.watchPosition(function(position) {
            var lat=position.coords.latitude;
            var lan=position.coords.longitude;  
            callback(lat, lan);
        });
    }
    else{
        alert("error");
    }
}

And your test function...

function test(){
    var out;
    STAAPlanlat(function(lat, lon) { out = lat; });
}