JSFiddle - React, Tailwind, and code Playground

by iamjpg

HTML

<label id="label1">
  <input type="checkbox" name="checkbox" id="checkbox1">
</label>
<textarea id="textarea1">
  
</textarea>

JavaScript

var cb = document.querySelector('#checkbox1');

cb.onchange = function(e) {
	e.target.parentElement.nextElementSibling.value = "Woot"
}