Alphabet generator in Javascript

alphabet.js

// Function to generate an array w/ alphabet letters
function genCharArray(charA, charZ) {
  var a = [], i = charA.charCodeAt(0), j = charZ.charCodeAt(0);
  for (; i <= j; ++i) {
    a.push(String.fromCharCode(i));
  }
  return a;
}
// Function to parse URL and get last element
function parseURL(url) {
  var array = url.split('/');
  var lastsegment = array[array.length-1];
  return lastsegment;
}
// Function to set alphabet array in great HTML format
function layoutCharArray() {
  var alphabet = genCharArray('a', 'z');
  var element = document.getElementById("alphabet");
  var path = "http://localhost"
  
  for (i = 0; i < alphabet.length; i++) {
    nameList = "<li>" + "<a href='" + path + alphabet[i] + "'>" + alphabet[i] + "</a>" + "</li>";
    element.innerHTML += nameList;
  }
}

// Launch function if element 'alphabet' exists
if (document.getElementById("alphabet")){
  layoutCharArray();
}