alphebetize-the-alphabet.js

(() => {
  const letters = {
    a: 'ay',
    b: 'bee',
    c: 'see',
    d: 'dee',
    e: 'eee',
    f: 'eff',
    g: 'jee',
    h: 'aitch',
    i: 'eye',
    j: 'jay',
    k: 'kay',
    l: 'ell',
    m: 'em',
    n: 'en',
    o: 'oh',
    p: 'pee',
    q: 'cue',
    r: 'arr',
    s: 'ess',
    t: 'tee',
    u: 'you',
    v: 'vee',
    w: 'doubleyou',
    x: 'eks',
    y: 'why',
    z: 'zee'
  };

  let order = Object.keys(letters);

  const sortFn = (a, b) => {
    const wa = letters[a];
    const wb = letters[b];
    for (let i = 0; i < wa.length && i < wb.length; i++) {
      const va = order.indexOf(wa[i]);
      const vb = order.indexOf(wb[i]);
      if (va > vb) return 1;
      if (va < vb) return -1;
    }
    if (wa.length > wb.length) return -1;
    if (wb.length > wa.length) return 1;
    return 0;
  };
  let newOrder = order.slice().sort(sortFn);
  while (newOrder.join('') !== order.join('')) {
      order = newOrder;
      newOrder = order.slice().sort(sortFn);
  }
  console.log(order.join(''));
})();