Variable into a function

Question

What am I missing here? It seems simple but I can't figure out why the 2nd alert shows "undefined" for the var id

<input type='button' class='getLoc' id=‘s13' value=‘s13’>
<script>
$(function(){
    $('.getLoc').click(function(){
        var id = $(this).attr('id');
        alert(id); //<-- shows s13
        navigator.geolocation.getCurrentPosition(function(position,id){
            var lat = position.coords.latitude;
            var lon = position.coords.longitude;
            alert(lat+","+lon+","+id); //<-- shows undefined for id
        });
    });
});
</script>

Pointy · Accepted Answer · 2015-12-17 18:46:23Z

5

It's because you included id as a parameter to the callback function. That's the id that your alert() will refer to, and since only one argument is passed to the callback the value is undefined.

It should just be

        navigator.geolocation.getCurrentPosition(function(position){

answered Dec 17, 2015 at 18:46

Pointy

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