JSFiddle - React, Tailwind, and code Playground

by Gabriele Petrioli

HTML

<input type="text" class="myClass" value="" /> is .myClass<br />
<input type="text" class="myClass" value="" /> is .myClass<br />
<input type="text" class="myClass" value="" /> is .myClass<br />
<input type="text" class="myClass" value="" /> is .myClass<br />
<input type="text" class="" value="" /><br />
<input type="text" class="" value="" /><br />
<button id="check">check</button>

JavaScript

$('#check').click(function(){
    if ( $('.myClass').filter(function(){
                                 return $(this).val() != '';
                               }).length == 0
       )
    {
        alert('all .myClass are empty');
    }
});