dart:collection

any method

bool any(bool f(E element))

Checks whether any element of this iterable satisfies test.

Checks every element in iteration order, and returns true if any of them make test return true, otherwise returns false.

Source

bool any(bool f(E element)) {
  for (E element in this) {
    if (f(element)) return true;
  }
  return false;
}