Function filterDuplicateStrings

lib/internal/util.js:333–345

(items, low)

}

function filterDuplicateStrings(items, low) {
  const map = new SafeMap();
  for (let i = 0; i < items.length; i++) {
    const item = items[i];
    const key = StringPrototypeToLowerCase(item);
    if (low) {
      map.set(key, key);
    } else {
      map.set(key, item);
    }
  }
  return ArrayPrototypeSort(ArrayFrom(map.values()));
}

function cachedResult(fn) {
  let result;