30-seconds-of-code/test/isSimilar/isSimilar.js

const isSimilar = (pattern, str) =>
  [...str].reduce(
      (matchIndex, char) =>
          char.toLowerCase() === (pattern[matchIndex] || '').toLowerCase()
              ? matchIndex + 1
              : matchIndex,
      0
  ) === pattern.length;
module.exports = isSimilar;