Beyond Scala Lens

Aug 26, 2015 · Lausanne, Switzerland

Beyond Scala Lens
 A Lens is a functional concept which solves a very common problem: how to update a complex immutable structure. This is probably the reason why Lenses are relatively well know functional programming languages such as haskell or scala. However, there are far less resources available on the generalisation of Lenses known as "optics". Today, I would like to go through a few of these optics namely Iso, Prism and Optional by showing how they relate to each other as well as how to use optics in a day to day programming job. 

Julien Truffaut is the author of Monocle, an optics library for scala mainly inspired by haskell lens. He also participates in a few open source project such as scalaz, cats or http4s.

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