Question

Quick question, is this code possible?

function respond (primary_id) {
var answer = $('id_of_' + primary_id).val();    
}

I’ve tested it out but the error produced does not directly point to this line of code, but another that is using this variable answer so I can’t be sure if this is causing the problem or something else. If this can’t work, then what is an alternative?

Answer 1

$('id_of_' + primary_id)

Would point to all elements:

<id_of_xxx>

Which don’t exist in any version of HTML I’ve seen…

If you’re looking for an element with that ID,

$('#id_of_' + primary_id)

Would be the way to go.

Also, don’t forget to return the value:

function respond (primary_id) {
     var answer = $('id_of_' + primary_id).val();    
     return answer;
}