Index - U
| uncons | Optics.Cons.Core, Optics.Core |
| uncurried | Optics.Iso, Optics.Core |
| uncurry' | Optics.Internal.Utils |
| under | Optics.Iso, Optics.Core |
| unfolded | Optics.Fold, Optics.Core |
| unIntT | Optics.Internal.Indexed |
| united | Optics.Lens, Optics.Core |
| universeOf | Optics.Fold, Optics.Core |
| Unless | Optics.Internal.Optic.TypeLevel, Optics.Internal.Optic |
| unsafeFiltered | Optics.AffineTraversal, Optics.Core |
| unsafeFilteredBy | Optics.IxAffineTraversal, Optics.Indexed.Core, Optics.Core |
| unsnoc | Optics.Cons.Core, Optics.Core |
| unto | Optics.Review, Optics.Core |
| unwrapIdentity' | Optics.Internal.Utils |