rating credit scores exercise

rating-credit-scores-FLIP.js

import { map, cond, gte, lte, flip, always } from 'ramda'
import scores from './scores.json'

const flippedGTE = flip(gte)

const flippedLTE = flip(lte)

const rater = cond([
  [ flippedGTE(800), always(`excellent!`) ],
  [ flippedGTE(700), always(`good`) ],
  [ flippedGTE(650), always(`fair`) ],
  [ flippedLTE(649), always(`poor`) ],
])

const createReview = (score) => `${score} is ${rater(score)}`

const getCreditScoreRatings = map(createReview)

const result = getCreditScoreRatings(scores)

console.log({ result })

rating-credit-scores-LTE.js

import { cond, gte, lte, map } from 'ramda';
import scores from './scores.json';

const reviewCreditScore = cond([
  [lte(800), (score) => `${score} is excellent!`],
  [lte(700), (score) => `${score} is good`],
  [lte(650), (score) => `${score} is fair`],
  [gte(649), (score) => `${score} is poor`]
]);

const reviewCreditScores = map(reviewCreditScore);

console.log(reviewCreditScores(scores));

scores.json

[
  631,
  604,
  527,
  503,
  800,
  579,
  673,
  513,
  808,
  701,
  833,
  795,
  644,
  649,
  557,
  556,
  548,
  815,
  737,
  687,
  777,
  635,
  653,
  829,
  593,
  511,
  663,
  737,
  713,
  797,
  608,
  577,
  636,
  655,
  850,
  540,
  626,
  609,
  737,
  570,
  720,
  668,
  789,
  658,
  615,
  628,
  519,
  611,
  766,
  811
]