(defn make-str [s c] (let [my-str (ref s)] (dosync (alter my-str str c)))) (defn make-str-from-chars "make a string from a sequence of characters" ([chars] make-str-from-chars chars "") ([chars result] (if (= (count chars) 0) result (recur (drop 1 chars) (make-str result (take 1 chars)))))) 

Thank you!

My old C# habit for trying stuff was to change a dummy unit test and then compile/run. It had all the drama of flipping a big switch and waiting for a lumbering Frankenstein to wake up and do something, all the boiler plate of unit tests, etc. I'm so glad Clojure is a lisp.

I was wondering this about development environments other than emacs: can you navigate/slurp/barf/kill entire sexps in other IDEs like you can in emacs? (If I should ask this someplace else in the forums, let me know!)

I'd be very interested in reading a Clojure "magazine". I think I'd
be interested in interviews with professional Clojure programmers. It's
usually hard to find good examples of Clojure being used in professional
environments.

I'd like to see some opinion articles, Clojure seems to come with lots
of fascinating philosophy which I'm sure Rich Hickey has plenty more to
share.

Articles with working code sounds good.

How about some code snippets showing off some particularly concise code.
There are plenty of gems around the 'net, not to easy to search through them.
Maybe try and abstract out a pattern (eg. when looping over more than one vector
consider using <pattern>). That's always fun to read.

Workflows are usually interesting. Lots of newbies would love to hear how others
*really* use their IDE/editor. Maybe brief overviews of vimclojure/slime and then
ways to optimize your workflow? Accessibility of clojure tools seems to be a weakness
IMO, at least for the more powerful ones.

If content is needed, I could could write something about genetic programming, Clojure web server performance or computer algebra.

Any opinions?

Ideas for articles:

1) A tour of the Java / JVM ecosystem for clojure programmers with little or no Java background. What are the libraries, frameworks, and tools every clojure programmer should know about, even if he or she never writes a line of java? How do we use them from clojure? Actually this might make for a nice series or even a regular column.

2) Articles about how to arrange your development environment, tailored to begininning, intermediate, and advanced programmers, and exploring a few different styles of workflow. For example, emacs/swank vs other IDE's, leiningen vs other building techniques, git vs hg vs whatever, etc. Obviously some of this is orthogonal to language choice, so a straight git vs hg article probably doesn't make sense.

3) You mentioned code walkthroughs — I'd love to see this for some key, important, popular, clojure libraries or apps. Not sure what to suggest, but reading good code is one of the best ways for me to learn a new language.

usually when I learn a new language I write a chess programm to have something
hands-on and a mission. But I wonder how to do this with clojure.
My problem is:
=> Usually you have a mutable board structure like a Mailbox, 0x88 or a Bitboard. So if I try to use immutable structures it sounds terribly inefficient.
Does someone have a hint here like:

• Well: try it in Clojure. It will optimize and not so much worse then Java. Even in your Chess problem.
• Try the core search in C++, C or D
• Here is another workaround…

On the other hand Clojure looks brilliant for distributed search and the safe writeback of the search-results that the threads will yield.

Thanks in advance
Stefan Edlich

Most of my C# code is heavily FP influenced as-is, so that part isn't a huge learning curve.

Clojure seems like a good modern tool, and I'd like to give it a fair chance, but…

1) I don't know the Java libraries
2) I don't know the Java IDEs
3) I really like Visual Studio and Resharper; emacs just isn't jiving well with me.

Where's a good place to start?

I have a string of data and I would like to get a map {:key value, :key value, …}

How can I do that?

I've got:

user> (split (slurp "data") #",")
["0" "2" "1" "5" "2" "8" "3" "15" "4" "9"]

And I would like:
{:0 2, :1 5, :2 8, :3 15, :4 9}

Thanks.

As an adjunct to that, I think that each recipe should be on a separate page. Pros / cons?

Thanks,

-Dave

How do you feel about this? Agree or disagree?