How to count check-boxes using jQuery?

Question

I have tons of checkboxes that are either checked (checked="checked") or unchecked.

I would like to get the number of all checkboxes, unchecked and checked checkboxes.

With check-box I mean <input type="checkbox" />.

How to do it with jQuery? Thanks in advance!

score 170 · Accepted Answer · edited Jun 17 '16 at 12:34

170

You could do:

var numberOfChecked = $('input:checkbox:checked').length;
var totalCheckboxes = $('input:checkbox').length;
var numberNotChecked = totalCheckboxes - numberOfChecked;

EDIT

Or even simple

var numberNotChecked = $('input:checkbox:not(":checked")').length;

edited Jun 17 '16 at 12:34

Hassaan

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answered Nov 04 '11 at 15:19

Nicola Peluchetti

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score 18 · Answer 2 · edited Sep 13 '17 at 12:06

18

Assume that you have a tr row with multiple checkboxes in it, and you want to count only if the first checkbox is checked.

You can do that by giving a class to the first checkbox

For example class='mycxk' and you can count that using the filter, like this

$('.mycxk').filter(':checked').length

edited Sep 13 '17 at 12:06

Ramzan Mahmood

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answered Aug 27 '16 at 01:55

Samuel Aiala Ferreira

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I prefer this answer in my case because I can define the `let myCheckboxList = $('.mycxk');` to reuse it after this `myCheckboxList.filter(':checked').length`. – Sadiel May 10 '18 at 14:50
I also liked this answer – Alauddin Ahmed Nov 14 '19 at 08:34

score 15 · Answer 3 · edited Mar 28 '16 at 10:36

15

The following code worked for me.

$('input[name="chkGender[]"]:checked').length;

edited Mar 28 '16 at 10:36

Gunaseelan

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answered Jun 30 '15 at 11:06

Nguyễn Thành Bồi

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score 5 · Answer 4 · edited Jan 09 '17 at 07:16

5

There are multiple methods to do that:

Method 1:

alert($('.checkbox_class_here:checked').size());

Method 2:

alert($('input[name=checkbox_name]').attr('checked'));

Method 3:

alert($(":checkbox:checked").length);

edited Jan 09 '17 at 07:16

FelixSFD

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answered Jan 09 '17 at 06:57

Hasnain Mehmood

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score 2 · Answer 5 · edited Apr 17 '19 at 04:13

You can do it by using name attibute, class, id or just universal checkbox; If you want to count only checked number of checkbox.

By the class name :

var countChk = $('checkbox.myclassboxName:checked').length;

By name attribute :

var countByName= $('checkbox[name=myAllcheckBoxName]:checked').length;

Complete code

$('checkbox.className').blur(function() {
    //count only checked checkbox 
    $('checkbox[name=myAllcheckBoxName]:checked').length;
});

How to count check-boxes using jQuery?

5 Answers5

Complete code

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