clojure.md

Display Classpath

(println (seq (.getURLs (java.lang.ClassLoader/getSystemClassLoader))))

Install lein behind a proxy

export https_proxy='https://user:pass@proxy:8080'
export http_proxy='http://user:pass@proxy:8080'
wget --proxy-user=user --proxy-password='pass' --no-check-certificate https://raw.github.com/technomancy/leiningen/preview/bin/lein

How to start emacs from commandline on mac

$ type emacs
emacs is /opt/Utils/linux/bin/emacs
$ cat /opt/Utils/linux/bin/emacs
#!/bin/sh
/Applications/Emacs.app/Contents/MacOS/Emacs "$@"

ZeroMq examples

https://github.com/matlux/cljzmq-examples/blob/master/test/cljzmq_examples/serialization/clojure_test.clj

Clojure distinctive

short feedback loop repl code exploration homoiconic functional extensibility structurual deiting power of expression Data oriented

history

1936 lambda calculus (alonzo church) 1958 lisp (john McCarthy) History of Lisp, John McCarthy 1979 2000 Ideal Hash trees (Phil Bagwell) 2006 Out of the tar pit (Ben Moseley and Peter Marks) 2007 Clojure (Rich Hickey) 2021 Data-Oriented programming

Principal of Data-Oriented programming

1 Separate code from data 2 Represent data wtih generic data structures 3 immutable data