JSFiddle - React, Tailwind, and code Playground

HTML

<input id="theTextBox" type="text" />
<button id="theButton">Click Me</button>

JavaScript

document.getElementById("theTextBox").addEventListener("blur", OnBlur, false);

document.getElementById("theButton").addEventListener("click", ButtonClick, false);

function ButtonClick(e)
{
  console.log('button')
  alert('button')
}

function OnBlur(e)
{
  console.log('blur')
  alert('blur')

  //e.relatedTarget.focus();
  //e.relatedTarget.click();
}