Spring BootによるAPIバックエンド構築実践ガイド 第2版 何千人もの開発者が、InfoQのミニブック「Practical Guide to Building an API Back End with Spring Boot」から、Spring Bootを使ったREST API構築の基礎を学んだ。この本では、出版時に新しくリリースされたバージョンである Spring Boot 2 を使用している。しかし、Spring Boot3が最近リリースされ、重要な変...
I’ve been hard at work on a set of bindings to the OpenCV library, especially its C++ API, and I’ve been incorporating them into an idiomatic Haskell library. In the course of doing so I’ve written a few small bits of code that are more general than are strictly necessary for an OpenCV binding, and I think others would find them useful. I’ve also not seen any other attempt at a library like this.
A look at functional lenses in general, and the haskell "lens" library specifically. This talk walks through why lenses are encoded the way they are, and builds up to demonstrations of the lens library. The demonstration code is available at https://github.com/markhibberd/lens-talk (see script.org and src/*.hs)
Lenses are a simple but very useful construct that provide views over data for retrieval and modification in a compositional way. The lens library in Haskell (a.k.a. Control.Lens) takes this idea to an extreme. This talk provides a history of lens encodings and their failings, and then demonstrates why lens should be an essential part of any functional programmers toolkit. This talk was presented
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