fp-switch, pattern matching

Pattern matching

const patternMatch = (o, cond, or) => {
  if (typeof o[cond] !== 'function') {
    return or || null;
  }
  return o[cond]();
}


const TEST = {
  lol(){ return: 'lol' },
  kek(){ return: 'kek' },
  cheburek(){ return: 'cheburek' },
}
const DEFAULT = 'something default';

console.log(patternMatch(TEST, 'kek', DEFAULT));