nullsFirst property

Comparator<T?> get nullsFirst

Returns a Comparator that orders null values before non-null values.

Implementation

Comparator<T?> get nullsFirst => (a, b) {
  if (a == null && b == null) {
    return 0;
  } else if (a == null) {
    return -1;
  } else if (b == null) {
    return 1;
  }
  return this(a, b);
};