About This

If all goes well, this will become a little online Clojure tutorial for the Facebook Clojure Community.

If it doesn't go well, blame me - my name is Carl Smotricz and I'm the only (so far) author.

I'm no Clojure guru. I'm an enthusiast looking to share my enthusiasm with others. Comments, suggestions, criticism, contributions are welcome.

2. Hello World for Real

If you create a Nightcode project and call it hello, the IDE will create


  • a project directory called hello containing, among other things, 
    • a source code directory called src with 
      • a source package (or namespace?) directory called hello containing 
        • a file hello.clj.


core.clj will be auto-generated for you and contain something like this:






If you then hit Build in Nightcode, your program should be built,






and if that's OK you can hit Run and it should run.



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