Maximum Product Difference Between Two Pairs

export function maxProductDifference(nums: number[]): number {
  let [max1, max2] = [Number.MIN_SAFE_INTEGER, Number.MIN_SAFE_INTEGER];
  let [min1, min2] = [Number.MAX_SAFE_INTEGER, Number.MAX_SAFE_INTEGER];
 
  nums.forEach((num) => {
    if (max1 < num) {
      [max1, max2] = [num, max1];
    } else if (max2 < num) {
      max2 = num;
    }
 
    if (min1 > num) {
      [min1, min2] = [num, min1];
    } else if (min2 > num) {
      min2 = num;
    }
  });
 
  return max1 * max2 - min1 * min2;
}