Learning Resources

Here are some various learning resources concerning optics. Feel free to send a PR to add other learning material.

Presentations

• Beyond Lenses: how Iso, Prism, Lens and Optional relate to each other (by Julien Truffaut)
• Optics with Monocle: Modeling The Part and The Whole: Van Laarhoven Lenses, Prisms and Isos in Monocle, Id/Const Functors, Prism laws & Property testing (by Ilan Godik)
• Lenses: compositional data access and manipulation: Haskell Lens implementation (by Simon Peyton Jones)
• Lenses: A Functional Imperative: scalaz Lens usage with State to write functional code that looks like imperative one (by Edward Kmett)

Blog Posts

• Lens implementation: Van Laarhoven Lens implementation in Scala (by Julien Truffaut)

Other Optics Libraries

• Haskell Lens: library at the origin of Monocle
• Scalaz: Lens and PLens (for partial lens or Optional in Monocle)
• Shapeless: for boilerplate free Lens and Prism (what shapeless calls Prism is called Optional in Monocle)
• Quicklens

Resources in Japanese

• Monocleとかいうのがありまして: Introduction to Monocle (by Naoki Aoyama)
• MonocleのapplyLensメソッドの使い方: ApplyXXX usage (by Naoki Aoyama)

Resources in Korean

• Scala Lens Library: Introduction to Monocle (by Hoon Park)