single property

@override @Deprecated("Single is not supported as it would require consuming part of the iterator, which is likely not the users intent. Use peekable() instead.") T get single

Checks that this iterable has only one element, and returns that element.

Throws a StateError if this is empty or has more than one element. This operation will not iterate past the second element.

Implementation

@override
@Deprecated(
    "Single is not supported as it would require consuming part of the iterator, which is likely not the users intent. Use peekable() instead.")
T get single {
  assert(false,
      "Single is not supported as it would require consuming part of the iterator, which is likely not the users intent. Use peekable() instead.");
  return super.single;
}