10.000 dice Game

score.js

//take 1
let faceValue = (face, count) => {
	let simples = {1:100, 2:0, 3:0, 4:0, 5:50, 6:0}
	let triples = {1:1000, 2:200, 3:300, 4:400, 5:500, 6:600}
  let hasTriple = count >= 3
  let simplesCount = hasTriple ? count - 3 : count
  let triplesCount = hasTriple ? 1 : 0
  return (triplesCount * triples[face]) + (simplesCount * simples[face])
}

let countFaces = _.countBy(_.identity)

let aggregateScore = (result, [face, count]) => result + faceValue(face, count)

let score = roll => _.reduce(aggregateScore, 0)(_.toPairs(countFaces(roll)))