JSFiddle - React, Tailwind, and code Playground

by abdennour

HTML

<span id="ia">_</span>
<span id="ib">_</span><br>
<input id="swap" type="button" value="swap">

JavaScript

var a=2,b=5;

updateSpan();    
$('#swap').click(function(){
    swap();
    updateSpan();    
});




function swap(){
   b=a+(a=b)-b;
}
function updateSpan(){
  $('span#ia').html(a);
     $('span#ib').html(b);
}