containsLambda method

bool containsLambda(bool lambda(T))

Implementation

bool containsLambda(bool Function(T) lambda) {
  /// A method to get all values of a list that match with a method
  bool retval = false;

  forEach((element) {
    retval = retval || lambda(element);
    if (retval) {
      return;
    }
  });

  return retval;
}