JSFiddle - React, Tailwind, and code Playground

by Shahidiqbal390

HTML

<label class="checkbox">
    <input type="checkbox" name="kopi1" value="Kopi-1">1</input>
</label>
<label class="checkbox">
    <input type="checkbox" name="kopi2" value="Kopi-2">2</input>
</label>
<label class="checkbox">
    <input type="checkbox" name="kopi3" value="Kopi-3">3</input>
    </label>
    <input type="submit" name="submit" value="save" class="btn next">

JavaScript

$(document).ready(function(){
         $('input[type="checkbox"]').on('change',function () {
             if(!($(this).is(':checked'))){
                alert('no.3 not checked, direct to thank youpage!');
             }
        });
    });