CODEWITHSUNDEEP
javascript
bart2puck
bart2puck

Reputation: 2522

Variable into a function

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>

Upvotes: 0

Views: 34

Answers (1)

Pointy
Pointy

Reputation: 414016

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){

Upvotes: 5

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