optional library

An implementation of the Optional type.

Classes

Optional<T>

A container object which may contain a non-null value.

Extensions

OptionalExtension on T

OptionalIterableExtension on Iterable<T>

Extensions that apply to all iterables.

Constants

empty → const Optional

A constant, absent Optional.

Exceptions / Errors

NoValuePresentError

Error thrown when attempting to operate on an empty Optional's value.