Issue 308 2022-03-24
Welcome to another issue of Haskell Weekly! Haskell is a safe, purely functional programming language with a fast, concurrent runtime. This is a weekly summary of what’s going on in its community.
Isoxya 3.0 brings Kubernetes support to the next-generation web crawler. Arriving just a few weeks after Isoxya’s 5th birthday, Isoxya has been rearchitected extensively, supporting rapid prototyping and reliable scaling of crawler and scraper workloads, using the power of containers.
Algebraic Data Types in Haskell by Gints Dreimanis
Most programming languages have a way to make compound data types. In Haskell, we can do that via algebraic data types.
Faking local instances with
unsafeCoerce Dictby Finn Schneider
When you first learned about Haskell’s
Monoidtypeclass, you were probably quite surprised to find out that there is no instance for
Haskell Adventures: digging into the declarative approach by Dmitry Tsepelev
This article is not going to teach you how to write Haskell. Instead, I’m going show my excitement by sharing a couple of cool code snippents; maybe it will convince you to give Haskell a shot.
LTS 19 release and Nightly on ghc-9.2 by Jens Petersen
The Stackage team is very happy to announce the initial Stackage LTS version 19 snapshot release is now available, based on GHC version 9.0.2.
large-recordsrelease: now with 100% fewer quotes by Edsko de Vries
large-recordslibrary provides support for large records in Haskell with much better compilation time performance than vanilla
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An Alternative Approach by Monday Morning Haskell
There is a much higher chance that monadic actions will “fail” in some way. They won’t be able to achieve the stated goal of the computation and will enter some kind of exceptional flow.
Generating Other-extensions for Cabal Files by Vanessa McHale
One would like to be able to find all language extensions in a given Haskell project in order to populate the
other-extensionsfield of the
Show & tell
Haskell Type Visualizer by Sjur Millidahl
hs-term-emulator by Bit Connor
This is a Terminal Emulator (like xterm) implemented entirely in Haskell.
servant-typescript by Tom McLaughlin
This library generates TypeScript client libraries for Servant.