JSFiddle - React, Tailwind, and code Playground

by Jay Lim

HTML

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

JavaScript

let testArr = ['A', 'B', 'C', 'D', 'E'];
for(key in testArr){
	var li = document.createElement('li');
  li.appendChild(document.createTextNode(key));
  document.getElementById('result1').appendChild(li);
}

for(item of testArr){
	var li = document.createElement('li');
  li.appendChild(document.createTextNode(item));
  document.getElementById('result2').appendChild(li);
}