Get the ID by Class name JQuery

Question

Hi this is a jquery question:

supposed i have this:

<input type="checkbox" class="select" id ="select-1">

<input type="checkbox" class="select" id ="select-2">

and i want to get the id, of the checkbox that has been selected when i click a submit button (note: you can only select 1) and i have this button click event here:

$("#submit").click(function(){

          if($(".select").is(':checked')){

              alert($(".select").attr('id'));
          }
});

It always alerts "select-1" even if i select the checkbox with the "select-2" id.. I'm guessing since they're both in the same class the first one with the ".select" class to be found is displayed in the alert.. how do i get the specific id that is checked by using their class names? Thank You!

Answer 1

Are you only checking one checkbox at a time?

alert( $(".select:checked").attr('id') );

Or, if you have multiple checkboxes checked at once:

$(".select:checked").each(function(){
   alert($(this).attr('id'));
});

Demo: http://jsfiddle.net/UTux2/

Answer 2

Get ID using this way

$(".select:checked").attr('id');

Also keep in mind that if only one can be selected, it's better to change it to radio .

Answer 3

You aren't capturing the checked checkbox, you're only asking "is there one checked?".

$("#submit").click(function(){

    var elem = $(".select:checked");

    if(elem.length > 0){
        alert(elem.attr('id'));
    }
});

Answer 4

$("#submit").click(function(){  
          if($(".select").is(':checked')){
               var $this=$(".select").is(':checked');
               alert($this.attr('id'));
          }
});

Answer 5

There are multiple elements. You need to check for all checkbox having same class

$("#submit").click(function(){

          $(".select:checked").each(function(){
           alert($(this).attr('id'));
   });

});

Answer 6

you should be using radio buttons and not checkboxes to allow one choice out of many.

<input type="radio" name="select" value="select-1">
<input type="radio" name="select" value="select-2">

then things will get really simple:

$("#submit").click(function(){

    alert($('[name="select"]:checked').val());
});

Answer 7

try something like this, you don't need to iterate

        $(document).ready(function () {
            $("#submit").click(function(){
                  if($(".select").is(':checked')){
                      alert($(".select:checked").attr('id'));
                  }
            });
        });

Answer 8

Because you have not iterated all the elements which has class 'select'. It always goes to the first element and prints the result. Put a loop to iterate all elements having class 'select'.