Monocle is a Lens library, or more generally an Optics library where Optics gather the concepts of Lens, Traversal, Optional, Prism and Iso. Monocle is strongly inspired by Haskell Lens.
Monocle is a Lens library, or more generally an Optics library where Optics gather the concepts
of Lens, Traversal, Optional, Prism and Iso. Monocle is strongly inspired by Haskell Lens.
What does it mean?
Optics are a set of purely functional abstractions to manipulate (get, set, modify) immutable objects. Optics compose between each other and particularly shine with nested objects.
Why do I need this?
Scala already provides getters and setters for case classes but modifying nested object is verbose which makes code difficult to understand and reason about.
