How to check for a checkbox to be checked?

Question

I have 2 checkboxes. I need one, not both, but at least 1 to be checked. It is not a multiple selection but zero is not accepted. If one is checked, this line will work jQuery('#wiz_menu.nav-tabs > .active').next('li').find('a').trigger('click'); otherwise it should alert. The following makes it alerting all the time.

UPDATE

I am not using the submit button or I would have used the validate plugin. It is a normal button to go next in the wizard <button type="button" class="btnNext">Next step</button>

HTML

<div class="form-group"> <label for="usp-category-8" class="usp-checkbox usp-cat usp-cat-0"> <input type="checkbox" name="usp-category[]" id="usp-category-8" value="8" data-required="true" class="usp-input usp-input-category"> Cultura </label> <label for="usp-category-7" class="usp-checkbox usp-cat usp-cat-0"> <input type="checkbox" name="usp-category[]" id="usp-category-7" value="7" data-required="true" class="usp-input usp-input-category"> Scienze </label> <input type="hidden" name="usp-category-required" value="1"> </div>

JS

jQuery('.btnNext').on("click", function(){ if(jQuery(".tab-pane").is("#step1")) { var isChecked = false; $('input[type=checkbox]').on("change", function () { isChecked = true; }); if ( isChecked ) { jQuery('#wiz_menu.nav-tabs > .active').next('li').find('a').trigger('click'); } else { alert( 'Please, check at least one checkbox!' ); } } });

Setting to true on change will set it to true even when unchecking. But if it's not working at all, try using click (the logic will still be wrong though). — inarilo
– inarilo, Commented Apr 16, 2017 at 19:21
Because the behavior you're now implementing with checkboxes is the default behavior of radio buttons. — JJJ
– JJJ, Commented Apr 16, 2017 at 19:24

Sebastián Palma · Accepted Answer · 2017-04-16 19:30:44Z

With jQuery you can use is:

$('#form').on('submit', function(e) { e.preventDefault(); if ($('input[name="hi"]').is(':checked')) { console.log('checked'); } });

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <form id="form"> <input type="checkbox" name="hi" value="hi">Hallo<br> <input type="checkbox" name="gb" value="gb">Tschuss<br> <input type="submit" value="Submit"> </form>

Adapted to your code:

$('.btnNext').click(function(e) {	e.preventDefault(); if ($('#usp-category-7').is(':checked') || $('#usp-category-8').is(':checked')) { console.log('at least one is checked'); } });

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div class="form-group"> <label for="usp-category-8" class="usp-checkbox usp-cat usp-cat-0"> <input type="checkbox" name="usp-category[]" id="usp-category-8" value="8" data-required="true" class="usp-input usp-input-category"> Cultura </label> <label for="usp-category-7" class="usp-checkbox usp-cat usp-cat-0"> <input type="checkbox" name="usp-category[]" id="usp-category-7" value="7" data-required="true" class="usp-input usp-input-category"> Scienze </label> <input type="hidden" name="usp-category-required" value="1"> <button class="btnNext">Next</button> </div>

it is not a submit button i have, otherwise I would have used the validate plugin, it is a normal button to go next n the wizard
It's meant to be an example of how to use is @RobertoMarras.
ok thanks, I accept this as it is correct, however I have posted my own answer too for the solution I have adopted in my case.
Check the updated answer @RobertoMarras, I've added an example with your code.

Roberto Marras · Accepted Answer · 2017-04-16 19:29:34Z

Thanks to a comment, I personally resolved it like this, making them radio buttons. But I will accept the other answer as it is correct.

jQuery('.btnNext').on("click", function(){ if(jQuery(".tab-pane").is("#step1")) { if($('input[type=radio').is(':checked')) { jQuery('#wiz_menu.nav-tabs > .active').next('li').find('a').trigger('click'); } else { alert( 'Please, check at least one checkbox!' ); } } });

Collectives™ on Stack Overflow

How to check for a checkbox to be checked?

2 Answers 2

4 Comments

Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

4 Comments

Comments

Linked

Related