|
This channel is intended for people just starting with the Raku Programming Language (raku.org). Logs are available at irclogs.raku.org/raku-beginner/live.html Set by lizmat on 8 June 2022. |
|||
|
07:52
dakkar joined
|
|||
| lizmat | and yet another Rakudo Weekly News hits the Net: rakudoweekly.blog/2024/09/30/2024-40-done-25/ | 11:28 | |
| sjn | nice | 12:52 | |
|
16:38
dakkar left
18:39
discord-raku-bot left,
discord-raku-bot joined
|
|||
| timemelon | does raku have any ki | 20:38 | |
| like haskell's mapMaybe, taking a function which both transforms and decides whether to include the result | 20:39 | ||
| I've found that using an empty slip in a map does something similar, like .map({ condition ?? do-something-to($_) !! |() }) | 20:40 | ||
| but I was wondering if there's something already made for that | 20:41 | ||
| scullucs | Combine .map and .grep? | 20:45 | |
| m: <1 2 3 4>.grep(* %% 2).map(* ** 3) | 20:47 | ||
| Raku eval | |||
| scullucs | m: say <1 2 3 4>.grep(* %% 2).map(* ** 3) | ||
| Raku eval | (8 64) | ||
| lizmat | m: .say for <1 2 3 4>.map: { $_ if $_ %% 2 } # timemelon | 22:31 | |
| camelia | 2 4 |
||
| lizmat | any condition that does not fire, produces the empty Slip | ||
| so, what I understand of ki, .map is basically that, depending on the code you put in the map | 22:32 | ||
| m: .say for <1 2 3 4>.map: { $_ * 2 if $_ %% 2 } # modifying the result if there is a match | 22:33 | ||
| camelia | 4 8 |
||
| scullucs | Thanks lizmat 🙂 | 22:42 | |
|
23:15
Chanakan left
|
|||
| timemelon | that's exactly what I was after, ty! | 23:26 | |