Write a JavaScript program to create an array of elements, grouped based on the position in the original arrays and using function as the last value to specify how grouped values should be combined

const zipWith = (...array) => {
  const fn = typeof array[array.length - 1] === 'function' ? array.pop() : undefined;
  return Array.from(
    { length: Math.max(...array.map(a => a.length)) },
    (_, i) => (fn ? fn(...array.map(a => a[i])) : array.map(a => a[i]))
  );
};

zipWith([1, 2], [10, 20], [100, 200], (a, b, c) => a + b + c); // [111,222]

console.log(zipWith(
  [1, 2, 3],
  [10, 20],
  [100, 200],
  (a, b, c) => (a != null ? a : 'a') + (b != null ? b : 'b') + (c != null ? c : 'c')
));