optional

Jun 24, 2025

Changes in this version

+ func Compare[T cmp.Ordered](a, b Optional[T]) int

+ func Equal[T comparable](a, b Optional[T]) bool

+ type Optional struct

+ func As[T any, X any](x Optional[X]) Optional[T]

+ func AtIndex[E any, S ~[]E](s S, i int) Optional[E]

+ func First[E any, S ~[]E](s S) Optional[E]

+ func Key[K comparable, V any, M ~map[K]V](m M, k K) Optional[V]

+ func Last[E any, S ~[]E](s S) Optional[E]

+ func None[T any]() Optional[T]

+ func Some[T any](v T) Optional[T]

+ func Transform[T, X any](x Optional[X], fn func(X) T) Optional[T]

+ func TryTransform[T, X any](x Optional[X], fn func(X) (T, bool)) Optional[T]

+ func (o Optional[T]) Format(state fmt.State, verb rune)

+ func (o Optional[T]) Get() T

+ func (o Optional[T]) IsPresent() bool

+ func (o Optional[T]) TryGet() (T, bool)