export function topNWords(text: string, n: number): string[] {
  const seen = new Map<string, number>()

  // Fill map like ['foo', 3] => [word, times seen]
  for (const word of text.toLowerCase().split(/\s+/)) {
    seen.set(word, (seen.get(word) ?? 0) + 1)
  }

  return [...seen]
    .sort(([wordA, countA], [wordB, countB]) => 
      countB - countA || wordA.localeCompare(wordB)
    ) // Sort by times seen desc or alphabetically
    .slice(0, n) // Cut the section you need
    .map(([word]) => word); // Return keys only
}