Discussion on: Daily Challenge #3 - Vowel Counter

[Benny Powers 🇮🇱🇨🇦]

import { compose } from 'crocks';

const toLowerCase = s => s.toLowerCase();
const spread = s => [...s];
const length = xs => xs.length;
const included = xs => x => xs.includes(x);
const filter = p => xs => xs.filter(p);

const charIncludesCount = chars => compose(
  length,
  filter(included(toLowerCase(chars)),
  spread,
  toLowerCase
);

const vowelCount = charIncludesCount ('aeiou');