ninjaize your name

ninja.js

const chars = {
  a: 'ka',
  b: 'zu',
  c: 'mi',
  d: 'te',
  e: 'ku',
  f: 'lu',
  g: 'ji',
  h: 'ri',
  i: 'ki',
  j: 'zu',
  k: 'me',
  l: 'ta',
  m: 'rin',
  n: 'to',
  o: 'mo',
  p: 'no',
  q: 'ke',
  r: 'shi',
  s: 'ari',
  t: 'chi',
  u: 'do',
  v: 'ru',
  w: 'mei',
  x: 'na',
  y: 'fu',
  z: 'zi',

};

function ninjaize(name) {
  let ninjaName = '';
  for (char of name.toLowerCase()) {
    ninjaName += chars[char];
  }
  return ninjaName
}