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Comment by terhechte | Hacker News Reader

I bought a Clojure book and started going through it, and I have some limited experience with ELisp and Racket. I really like lispy (is that even a word?) languages, so I tried to get into Clojure, also because I really like the ideas behind ClojureScript and the various libraries for it. So far, my experience has been mixed, I guess because I didn't read enough, or maybe it is my unfamiliarity with anything jvm-related (having never been a Java guy), as that's also something I constantly run into when I'm doing Scala. I'll try to write a bit more in Clojure, but so far Julia felt easier to get into, and I really like the ability to use types so that stupid errors don't result in runtime issues.

There're way too many interesting languages these days :)

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I'm acutally playing with Clojure and Julia right now and I'm running into the same problem. Never used Java and a lot of the Clojure material assumes you're coming with at least a little bit of Java background. That said Clojure is a much more mature language, Julia is still very new, its APIs are changing rapidly, etc.

Agreed about too many interesting languages though :)

There's a few threads on SO that try to summarize what you need to know if you haven't programmed in java before(and, yes, it's a decent amount), e.g. what a JAR is, classpath, -server vs. -client, -Xmx and Xms, GC options etc. Alternatively, ask on reddit, IRC or the mailing list

http://stackoverflow.com/questions/5721496/learning-java-so-...

http://stackoverflow.com/questions/11358929/what-should-a-sc...

http://www.reddit.com/r/Clojure/comments/1ev4u5/what_do_i_ne...

Thanks! These look very helpful! I'm currently doing quite some Scala and the problems are very similar, so I bet that these will help me a lot.

Here's an idea: A port of Incanter to Typed Racket

Not exactly a trivial task... Incanter uses several sizable Java libraries (such as Parallel Colt) under the hood, so a port would first need to either finding suitable replacements or re-writing that code as well.

Definitely not a trivial task--though it may be a worthy task. Incanter has moved from PColt to JBlas, and is moving toward core.matrix which will abstract the linear algebra stuff. If anything, I'd guess that Racket might be an easier ask than Clojure due to the JVM weirdness around boxing / unboxing of numbers passed to and from the underlying jblas (it's entirely possible I don't understand what I'm talking about re boxing / unboxing, though I've heard tell that the JVM makes some aspects of numerical work very challenging).

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