JSFiddle - React, Tailwind, and code Playground

by dying_sakura

HTML

<input type="text" id="element1"/>
<input type="text" id="element2"/>
<input type="button" class="sendButton" value="submit">

JavaScript

$(document).ready(function(){
    $('.sendButton').attr('disabled',true);
    
   $('#element1, #element2').keyup(function(){
        if($(this).val().length != 3){
            $('.sendButton').attr('disabled', false);
        }
        else
        {
            $('.sendButton').attr('disabled', true);        
        }
    })
});