[Jprogramming] Feedback on beginner's code

[Adam Tornhill]

Thanks everyone for all the valuable feedback and encouraging words! Much appreciated.
I've learned a lot from your responses and look forward to explore J in much more depth.
Thanks!--  Homepage: www.adamtornhill.com  Twitter: @AdamTornhill 
Your Code as a Crime Scene: https://pragprog.com/book/atcrime/your-code-as-a-crime-sceneLisp for the Web:  https://leanpub.com/lispwebPatterns in C: https://leanpub.com/patternsinc 

    Den måndag, 14 mars 2016 3:40 skrev 'Jon Hough' via Programming <programming at jsoftware.com>:
 

 As a fellow beginner (learning for well over a year, on and off), I'll show a way I would do it:

isAnagramOf =: -:&:(-.&' '@:/:~@:tolower)

I think Henry mentioned using the above conjunctions.
Also, as Henry said, Dissecting the verb is a great way to see what happened.

NB. name the string literals, it makes life easier
lhs =: 'a b C'
rhs =: 'cB  a'
space =: ' '

load 'debug/dissect'

dissect 'lhs ( -:&:(-.&space@:/:~@:tolower)) rhs'



On top of JForC and Roger Stokes' book, and of course the Dictionary and Nuvoc, I found the "Brief J Reference" really helpful:

http://www.jsoftware.com/books/pdf/brief.pdf

Especially pages 17 and 18, which give a great overview (in diagram form) of J's conjunctions, forks and hooks, without discussing rank, which of course is important, but, for me at least, these diagrams really made the whole concept click.

Regards,
Jon
--------------------------------------------
On Mon, 3/14/16, Adam Tornhill <adam at adamtornhill.com> wrote:

 Subject: [Jprogramming] Feedback on beginner's code
 To: "programming at jsoftware.com" <programming at jsoftware.com>
 Date: Monday, March 14, 2016, 12:21 AM
 
 Hi all,
 I finally decided to try to understand this fascinating
 language. So far I've spent some evenings reading and
 experimenting with the language. J is fun. Real fun. I also
 like how J forces me to re-consider how I view programming.
 Of course, that also means I'm still at a complete
 beginner's stage, so I'd like to ask for some feedback and
 suggestions on my first J code. I'm sure there's a lot I can
 simplify in my code.
 Here's the code I put together by digging around in the J
 Dictionary:
 isAnagramOf=:(0:`((*/)@(=&((/:~@tolower)@(' ' &
 i.#])))))@.(=&(#@:(' ' & i.#])))
 
 Some examples: 
   'Nag a Ram ' isAnagramOf 'Anagram'1
    'ab' isAnagramOf 'aa'0
 All tips and hints on both the code and learning J in
 general would be much welcome.
 Thanks!/Adam--  Homepage: www.adamtornhill.com  Twitter:
 @AdamTornhill 
 Your Code as a Crime Scene: https://pragprog.com/book/atcrime/your-code-as-a-crime-sceneLisp
 for the Web:  https://leanpub.com/lispwebPatterns in C: https://leanpub.com/patternsinc
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