JSFiddle - React, Tailwind, and code Playground

by Jay Lim

HTML

<ul id="result1"></ul>
<ul id="result2"></ul>

JavaScript

let testArr = [0, 1, 2, 3, 4];
for(let idx = 0; idx < testArr.length; idx++){
	let li = document.createElement('li');
  li.appendChild(document.createTextNode(idx));
  document.getElementById('result1').appendChild(li);
}

for(key in testArr){
	let li = document.createElement('li');
  li.appendChild(document.createTextNode(key));
  document.getElementById('result2').appendChild(li);
}