function intercalateArrays(arrayA: unknown[], arrayB: unknown[]): unknown[] {
  // If either array is empty, return the other
  if (arrayA.length === 0) return arrayB
  if (arrayB.length === 0) return arrayA
  
  // Determine the number of iterations needed
  const maxLengthArr = Math.max(arrayA.length, arrayB.length)
  
  // Return a new list with values interleaved, excluding null and undefined
  return Array.from({ length: maxLengthArr })
    .flatMap((_, i) => [arrayA[i], arrayB[i]])
    .filter(v => v != null)
}

// No modificar: necesario para evaluar el resultado.
export { intercalateArrays };