any method

bool any(bool test(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 test(E element)) {
  int length = this.length;
  for (int i = 0; i < length; i++) {
    if (test(this[i])) return true;
    if (length != this.length) {
      throw new ConcurrentModificationError(this);
    }
  }
  return false;
}

© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/1.24.3/dart-collection/ListMixin/any.html