JSFiddle - React, Tailwind, and code Playground

HTML

<button id="btn">pew</button>

<pre id="out"></pre>

JavaScript

function gimmeSomeMagic() {
  let n = 12;
  return function() {
    out.textContent += `Hello from here, ${n++} increased to ${n}\n`;
    // some code here
  }
}

btn.onclick = gimmeSomeMagic();