JSFiddle - React, Tailwind, and code Playground

HTML

<div><button  class="plus" type="button">Click Me</button></div>
<div><button   class="minus" type="button"> Minus </button></div>
<button></button>
<div id="output">1</div>

JavaScript

$( "#x" ).prop( "disabled", true );
$('.plus').click(function() {
    $('#output').html(function(i, val) { if(val< 15) return val*1+1 });
});
$('.minus').click(function(){ 
   $('#output').html(function(i,val) { if(val< 0) { $('.minus').prop('disabled',true) ;}  
   if(val>0)
   return val*1-1;
   });
});