module.exports = function array_product(input) {
  //      discuss at: https://locutus.io/php/array_product/
  // parity verified: PHP 8.3
  //     original by: Waldo Malqui Silva (https://waldo.malqui.info)
  //       example 1: array_product([ 2, 4, 6, 8 ])
  //       returns 1: 384

  let idx = 0
  let product = 1
  let il = 0

  if (!Array.isArray(input)) {
    return null
  }

  il = input.length
  while (idx < il) {
    product *= !isNaN(input[idx]) ? input[idx] : 0
    idx++
  }

  return product
}