-main

• I missed this when it came out, but I really enjoyed James Reeves’ keynote on Transparency through data. It helped me put into words some thoughts I had lingering on hard to understand code.
• Delay: Clojure’s forgotten concurrency primitive
• REPL Debugging without stack traces by Stuart Halloway
• Reuse comes in Pints
• Clojure use at Signal (but not the messaging app Signal)
• Comparing Java’s verbosity with Clojure

Libraries & Books.

• clj-duckling is a library for parsing text into structured data, e.g. dates, currency, distances
• data-frame lets you use re-frame with Datascript as data storage

People are worried about Types. ?

• Do we need 3, or just 2 error types?

Foundations.

• Why does the G1 GC shrink number of regions? is a good look at how garbage collection handles changing workload types.

Tools.

• What’s the simplest way to publish to Clojars?

Recent Developments.

• Alex Miller has a Welcome to Clojure post on the mailing list
• Generative Testing for Self-Hosted ClojureScript
• CLJS-1977: defrecord should use murmur hashing like Clojure

Learning.

• More linear algebra from Dragan Djuric 
• Clojure Gotchas with Unicode surrogate pairs

Misc.

• I meant to put this in last weeks letter, but forgot about it when I was writing. What can a technologist do about climate change? from Bret Victor.