Unusual Raku Features • Hacker News Board

Re: Unusual Raku Features

#11

Post by labster » Wed, Nov 13, 2024, 12:32 AM UTC

quink wrote: post #4

jddj wrote: post #2

> (2,4,8...*)[17] 262144 This one genuinely surprised me

My brain immediately reached for the word 'horrifying', with phrases 'terrible consequences' and 'halting problem' soon after, but to each their own.

I believe that it only tries to DWIM with arithmetic and geometric sequences, and gives up otherwise. Of course there’s nothing keeping you from writing a module that would override infix:... in the local scope with a lookup in OEIS.

Re: Unusual Raku Features

#12

Post by jimberlage » Wed, Nov 13, 2024, 12:33 AM UTC

So I guess Perl is a gateway drug for the APL family of languages now?

Re: Unusual Raku Features

#13

Post by agumonkey » Wed, Nov 13, 2024, 12:35 AM UTC

christophilus wrote: post #9

Wow. Sign me up for leaving the industry before I ever have to maintain a Raku codebase.

Funny, cause reading that blog post made me want to quit my job and find a raku team to work with. Maybe I'm still too naive :)

Re: Unusual Raku Features

#14

Post by dragonwriter » Wed, Nov 13, 2024, 12:35 AM UTC

broodbucket wrote: post #7

It is absolutely mindbending to me that all of this language development has happened on top of Perl, of all things.

Wasn’t Raku/Perl6 basically a ground-up reconception more than a building-on-top of existing Perl5?

Re: Unusual Raku Features

#15

Post by agumonkey » Wed, Nov 13, 2024, 12:38 AM UTC

jddj wrote: post #2

> (2,4,8...*)[17] 262144 This one genuinely surprised me

very cohesive,

    [7] > (1,3,9...*)[4,5]
    (81 243)
    [8] > (1,3,9...*)[(1..3)]
    (3 9 27)

and nestable

    [0] > (1,2,4...*)[(1,2,4...*)[1,2,3]]

Re: Unusual Raku Features

#16

Post by [deleted] » Wed, Nov 13, 2024, 12:39 AM UTC

quink wrote: post #3

I’m not sure this page loaded properly for me, half of it is arbitrary punctuation characters assembled in bizarre nonsensical ways.

[deleted]

Re: Unusual Raku Features

#17

Post by agumonkey » Wed, Nov 13, 2024, 12:40 AM UTC

emmelaich wrote: post #6

> (2, 30, 4, 50).map(* + *) returns (32, 45) Should it be `returns (32, 54)` ? i.e. 4+50 for the 2nd term. Maybe this is a consequence (head translation) of some countries saying e.g. vierenvijftig (four and fifty) instead of the English fifty-four.

checked in rakudo, it does return (32 54), author fingers slipped

Re: Unusual Raku Features

#18

Post by trescenzi » Wed, Nov 13, 2024, 12:45 AM UTC

quink wrote: post #3

I’m not sure this page loaded properly for me, half of it is arbitrary punctuation characters assembled in bizarre nonsensical ways.

https://imgur.com/uMuoeuC

Re: Unusual Raku Features

#19

Post by yen223 » Wed, Nov 13, 2024, 12:45 AM UTC

quink wrote: post #3

I’m not sure this page loaded properly for me, half of it is arbitrary punctuation characters assembled in bizarre nonsensical ways.

That's an interesting way to describe the English language.

Re: Unusual Raku Features

#20

Post by tail_exchange » Wed, Nov 13, 2024, 12:45 AM UTC

    # Does weird things with nested lists too
    > [1, [2, 3], 4, 5] > [10, 20]
    [11 [22 23] 14 25]

This article makes me feel like I'm watching a Nao Geo/Animal Planet documentary. Beautiful and interesting to see these creatures in the wild? Absolutely. Do I want to keep my distance? As far away as possible.