JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://code.jquery.com/jquery-1.11.1.min.js"></script>
<form>
<input id="disabled" type="button" value="clk" disabled>
</form>

JavaScript

$('#disabled').on('click',function(e){
 
  var isDisabled = $('#disabled').prop('disabled');
    
    if (isDisabled)
    {
            alert('yes');
    }
    else
    {
        alert('no');
    }    
    
});