median function Null safety

num median(List array)

Produce the median of the given array.

Implementation

num median(List<dynamic> array) {
  array.sort();
  var half = (array.length / 2).floor();
  if (array.length % 2 == 0) {
    return (array[half - 1] + array[half]) / 2;
  }
  return array[half];
}