const scores = {
  A: 1,
  B: 3,
  C: 3,
  D: 2,
  E: 1,
  F: 4,
  G: 2,
  H: 4,
  I: 1,
  J: 8,
  K: 5,
  L: 1,
  M: 3,
  N: 1,
  O: 1,
  P: 3,
  Q: 10,
  R: 1,
  S: 1,
  T: 1,
  U: 1,
  V: 4,
  W: 4,
  X: 8,
  Y: 4,
  Z: 10
};

module.exports.score = async word =>
  word.split('').reduce((previous, current) => previous + scores[current.toUpperCase()], 0);