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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. |
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| su.shi | hello ,I'm trying to use the File::Find module and in their example they have .say for find dir => '.'; I'm not sure what the => syntax is doing, and when i look at the docs for for and throughout the operator docs, ican't find info about it | 17:58 | |
| antononcube | @sushi Maybe, I can clarify by re-writing, | 18:00 | |
| for find(dir => '.') -> $f { say $f } | 18:01 | ||
| su.shi | ohh, is it a named parameter? | ||
| thank you | 18:02 | ||
| now im wondering, is there a way for me to gather all of the files into an array by doing something like my @files = for find dir => '.'; on one line ? | 18:03 | ||
| antononcube | Doesn't that work default like that? | 18:06 | |
| Meaning does this work: my @files = find(dir => '.'); | 18:07 | ||
| su.shi | ah it does lol | 18:08 | |
| getting too excited with syntax | |||
| my @files = gather { take $_ for find dir => '.' }; i found this | |||
| obviously redundent though since i am just consuming the elements of a list into another | 18:09 | ||
| antononcube | Well, if you have a "deep" directory (with sub-directories) you might prefer to flatten the hierarchy in to an array of strings/files. | 18:10 | |
| (I am not sure "Find::File" is doing -- haven't used it...) | 18:11 | ||
| su.shi | just recursively walks a directory and returns a list of its files | 18:12 | |
| oh it returns a lazy list, so i suppose if i wanted to get all of the elements as soon as i call this would be a way to do it | 18:14 | ||
| antononcube | ok. 🙂 | ||
| su.shi | thanks for the help! | 18:15 | |
| antononcube | @su.shi Good luck! | 18:21 | |
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| su.shi | how do i check if a file handle is a directory? | 18:55 | |
| oh i see | 19:00 | ||
| what's a good way to get line number in raku? in perl i would just use $., but that's gone, so can i use something like enumerate from python on the lines Seq? | 20:57 | ||
| or yeah, im using kv on lines, but mi not sure how to consume the line number from it | 20:59 | ||
| antononcube | @sushi I am not sure I understand correctly... Does this work: for "sashimi".comb.kv -> $k, $v { say "$k : $v "} | 21:01 | |
| su.shi | does the same syntax work for while? im using while like i did in perl rn: while my $line = $fh.lines and i tried consuming the line num by doing while my ($num, $line) = $fh.lines.kv but it complains about an uninitialized var | 21:03 | |
| ah i got it, should have been using for not while | 21:21 | ||
| nemokosch | What Anton wrote is clear and concise | 21:47 | |
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| habere-et-disper | Are these two statements strictly equivalent ? Any caveats ? | 22:55 | |
| if $condition { thing-1; thing-2; } | |||
| $condition && { thing-1; thing-2; } | |||
| nemokosch | Well, return value? | 23:38 | |
| habere-et-disper | Is the return value not the same for both cases? (Either False if $condition fails, or thing-2 if True.) | 23:42 | |
| nemokosch | Probably not but I don't know but heart | 23:44 | |
| If $condition were a falsy non-boolean value, && would surely return it as-is, though | 23:45 | ||
| habere-et-disper | Thanks. | 23:57 | |