#racket on 2020-06-17 — irc logs at freenode.irclog.whitequark.org

2020-05-03 17:48 samth changed the topic of #racket to: Racket v7.7 has been released: https://blog.racket-lang.org/2020/05/racket-v7-7.html -- Racket -- https://racket-lang.org -- https://pkgs.racket-lang.org -- Paste at http://pasterack.org

00:09 <samth> dzoe: this seems relevant to your interests https://github.com/racket/racket/commit/f3dd113e9dd568918c9f4280bb5260e62fbd4479#commitcomment-39958150

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03:11 <elcaro> i'm converting an integer to a list of digits, but my function seems a bit verbose... am i missing a trick?

03:11 <elcaro> (map (lambda (x) (string->number (string x))) (string->list (number->string 1123)))

03:16 <elcaro> nvm... found an SO post that covers this

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04:48 <erkin> You can compartmentalise your code into separate procedures to reduce verbosity: (define char->number (compose string->number string)) (define number->list (compose string->list number->string)) (define (number->digits n) (map char->number (number->list n)))

04:49 <erkin> Makes your code more human-readable and allows you to reuse the same logic elsewhere.

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05:39 <dzoe> samth: wow! Five days from "I am refactoring the loops" to this. I wonder whether Matthew teaches any students these days or whether he ever sleeps.

05:40 <dzoe> And I thought I am the one who almost doesn't sleep but with all the grading I need to finish I had to put the interesting stuff aside for a few days.

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13:21 <samth> dzoe: I think he has one PhD student right now, and the semester is over teaching-wise. I also wonder about the sleep part.

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