Uncaught Error: Syntax error, unrecognized expression: label[for='days[]'], label[for='days[]'] *, #days[]-error

[albert28]

Hi :D, the first time I validate if, at least, there is one checkbox selected, the form validator works ok. Nonetheless, the second time I keep getting this error no matter if the checkbox is selected or not.

Uncaught Error: Syntax error, unrecognized expression: label[for='days[]'], label[for='days[]'] *, #days[]-error

Here's my HTML:

<div class="checkbox-list">
 <input type="checkbox" class="days" name="days[]" />Mon
 <input type="checkbox" class="days" name="days[]" />Tue
 <input type="checkbox" class="days" name="days[]" />Wed
</div>

Here's my Javascript inside form.validate

'days[]': {
 atLeastOneChecked: true
}

And here's my Javascript inside jQuery.validator.addMethod

jQuery.validator.addMethod("atLeastOneChecked",function(value, element, params) {
 var selectedDays=($('.days:checked').size());
 if (selectedDays>0) return true;
 else return false;
}, "Please, select one day at least");

[jzaefferer]

I can't reproduce this. Can you test with the code in master in this git repository? At testpage that shows the issue would also help. I can then reopen if it persists.

[albert28]

Thank you, but I already solved the problem. :)

[vierkantemeter]

Hi Albert28, I'm having the exact same problem. Do you remember how you fixed this?

[albert28]

Hi, vierkantemeter. Notice I changed "days[]" to simply "days" in HTML and Javascript.

<div class="checkbox-list">
 <input type="checkbox" class="days" name="days" />Mon
 <input type="checkbox" class="days" name="days" />Tue
 <input type="checkbox" class="days" name="days" />Wed
</div>

jQuery.validator.addMethod("atLeastOneChecked",function(value, element, params) {
   var selectedDays=($('.days:checked').size());
   return (selectedDays >0);
}, "Please, select one day at least");

rules: { 
   days: { //this references input[name=days]!
      atLeastOneChecked: true
   }
}

[vierkantemeter]

Thank you Albert!

• Michèlle

[staabm]

Fixed with c604e51