Clojure Weekly, July 9th, 2014
Welcome to another issue of Clojure Weekly! I’ve got tons of ideas and resources to follow coming out from EuroClojure, I’ll be digesting them here during the following weeks. If you don’t know what this is, Clojure Weekly collects a few links, normally 4/5 urls, pointing at articles, docs, screencasts, podcasts and anything else that attracts my attention in the clojure-sphere. I add a small comment so you can decide if you want to look at the whole thing or not. That’s it, enjoy!
My Top Clojure Articles - Adam Bard and his magical blog Signalling a nice collection of Clojure related articles by Adam Bard. They are divided by level of proficiency with the language, so it makes it a very good start to pick up Clojure from scratch.
EuroClojure’s Videos on Vimeo Unless they are already displayed when you read this, keep an eye on the EuroClojure channel on Vimeo because videos will appear very soon here. Go for David Nolen for the inspirational talk, Tommy Hall for the entertaining one or yours truly (Renzo) because this is a shameless plug!
Thoughtworks technology radar The last technology radar sees ClojureScript in the trial phase, up to the top close to the adopt section. Clojure the core language is not present, while Scala is in the adopt section. Clojure (Om-ClojureScript) is present in the explanation section as well. My impression is that TW is not endorsing Clojure as a server side language but as client side, which is amazing and disturbing at the same time (or as someone else put it on twitter, it is given Clojure as implicit adopt?). There are other well known technologies and platforms, but there are also new entires I'd like to have a look at.
Grimoire Grimoire is a new documentation service and community contributed example repo similar to ClojureDocs.org. ClojureDocs.org still comes up high in google searches despite it is documenting Clojure 1.3, by providing examples that are not easy to find elsewhere. Grimoire is instead up to date and also gives access to all the examples in clojuredocs. Grimoire is open to community contribution over git pull requests and will likely be improved in the future to make contributions easier.
Difference between defrecord and extend - Google Groups This interesting thread finally solved my problem. Extending a type to a protocol is not equivalent to a defrecord definition that implements that same protocol. They generate different kind of polymorphism. The first main difference is that extending a type with a protocol is not adding functions to its interface (and this you can't invoke them on a record instance). Second main difference is that extending the type with a protocol allows for an implementation swap at any point, while defrecord definition of functions are forever.
Clojure - todo Another small bit of history, a Clojure todo list back from 2009. Is not very important today but I want to keep an handle to things I discover randomly just in case. Interesting to notice that 90% of what we are talking about nowadays with faster compilers for mobile or Cloj in Cloj were already there. Others like Datalog were not baked in directly in the language but in Datomic.
Clojure Gazette 1.81 - Nicola Mometto I'm very interested in everything compiler related these days and of-course I'm following the amazing work Nicola is doing to port Clojure in Clojure. This Clojure Gazette is an interview with Nicola that explains a little but of the background about his work, past, present and future. I hope we'll be soon meeting Nicola at some Clojure conference speaking about the work he's doing, but as he said in the interview, he's mostly spending his time coding and the better way to know about his work is to follow the public activity on github.
