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• Arne Brasseur on Lambda Island turning one, and the rocky journey so far.
• “I could see the eduction, presumably still wrapping the reified IReduceInit, perched atop a ziggurat of lesser transducers. I looked, and at the very bottom lay a blasphemous side-effectful invocation of map. I did not belong in this place.”
• Onyx now has a Java API. At work we were building a new system and looked very seriously at Onyx. We talked with Michael Drogalis and Lucas Bradstreet and found them to be very knowledgable and professional to work with. I’d highly recommend putting Onyx on your shortlist if you need to do analytics, CQRS, or anything that works with streaming data.

Libraries & Books.

• Ataraxy is an experimental data-driven Ring routing library from James Reeves. Think Compojure, but with data instead of macros.
• test2junit 1.3.0 is out
• huffman-keybindings is a neat way to generate short keybindings to commonly used UI components. Note that it’s licensed under AGPL-3.0 which makes it difficult to use with Clojure.
• Luke Vanderhart has an update on Arachne in a Reddit comment
• Process jobs with Redis and Farmhand

People are worried about Types. ?

• When the Scala compiler doesn’t help
• An Informal & Practical Guide to clojure.spec
• Clojure.spec, need function equivalents of library macros?

Foundations.

• What’s new in Java 9? (Besides Modules)

Tools.

• Cursive 1.5.0 is out with a bunch of improvements. I wrote a post about the improvements relating to dependencies.
• The last post had a bullet On Lumo’s Growth and Sustainability but was missing the hyperlink.
• Prepack looks like it could really improve ClojureScript startup time. Combining prepack and the Closure compiler seems fruitful too
• ClojureScript REPLs now support evaluating multiple forms on a single line.
• Lambda Island again, this time on writing Node.js scripts with ClojureScript
• Using lein to produce multiple artifacts from a Clojure monorepo. There’s been a slow trend of companies moving towards monorepos in the last few years. We’ve looked at it for work too, but decided against it for now.
• Java Stream Debugger for IntelliJ looks very very cool

Recent Developments.

• CLJS-2020 defmulti “miss” performance is poor

Learning.

• The status antipattern describes an alternative to having a single “status” field to describe an entity.
• Data wrangling with transducers for a machine learning problem
• Dealing with lazy data in a with-open

Misc.

• I watched this video about Allen Hemberger making every recipe in the Alineacookbook and documenting it in their own beautiful book. I’m still thinking about it a few days later. The teamwork that Allen and his wife Sarah for the project was inspiring to watch. They’re now working with the Alinea Group on a Kickstarter to produce a molecular gastronomy cocktail book.