csv.js

var inputBox = document.getElementById('input-box')
var btn = document.getElementById('submit-input-box')
var showValues = document.getElementById('show-values')

btn.addEventListener('click', function () {
  var text = inputBox.value
  var tokens = text.split(',').map(k => k.trim()) // this removes whitespace from each token
  // you could also do this with a for loop and remove the map() as follows
  // for(var token of tokens) {
  //  token = token.trim()
  // }
  tokens.sort()
  showValues.innerHTML = '' // clears list
  // clear list by setting empty inner HTML
  for(var token of tokens) { // token is current value
    var toAppend = document.createElement('li') // making empty <li>
    toAppend.innerText = token // filling in text for <li>value of token here</li>
    showValues.appendChild(toAppend) // appending to the bottom of <ol>
  }
})