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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disbot8 <jubilatious1_98524> m: grep({ .value == 2 }, ( 0 => 1, 1 => 2 ), :k).say 01:13
<Raku eval> (1)
<jubilatious1_98524> m: say grep({ .value == 2 }, ( 0 => 1, 1 => 2 )):k
<Raku eval> (1)
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disbot8 <simon_sibl> I dont understand why when making a class, we can use $.something to get setter/getter but inside methods we have to use $!something 09:20
lizmat you don't have to do that: you can also use $.something inside methods (which is the same as self.something.item) 09:25
and that would be recommended if you intend to make your class subclassable 09:26
disbot8 <simon_sibl> how come its allowed to mix between $. and $! ?
lizmat because they have different semantics
disbot8 <simon_sibl> has $.name and in a method using $!name, when would this be needed ? 09:27
<simon_sibl> when I do $.length++ it doesnt change the value, when I do $!length++ it does
lizmat m: class A { has $.name; method foo() { $.name } }; class B is A { method foo() { "bar" } }; say A.new(:name<foo>).foo 09:28
camelia foo
lizmat m: class A { has $.name; method foo() { $.name } }; class B is A { method foo() { "bar" } }; say B.new(:name<foo>).foo
camelia bar
lizmat the behaviour of $.lenght++ atm is actually a bug 09:29
github.com/rakudo/rakudo/issues/5908 09:30
which fix sadly had some ecosystem fallout, and got reverted :-( 09:32
github.com/rakudo/rakudo/commit/f9...296d7f9aa5 I mean 09:33
disbot8 <simon_sibl> hmmm I see, trying to write a simple linkedlist in Raku to train xD 09:36
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disbot8 <winfredraj> Hello lizmat, I am using v2025. 05. 13:14
lizmat hmmm.. I thought I'd fixed that particular wart hmmm... 13:16
could you golf the problem down and put it in a gist ?
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disbot8 <winfredraj> I'll try to get it done today 13:25
lizmat ++winfredraj
disbot8 <winfredraj> After I finish work
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disbot8 <librasteve> @simon_sibl ... I was also at this stage in my raku journey and when the pieces fell into place, I felt the need to write this rakujourney.wordpress.com/2020/05/...g-or-what/ (mainly as a way to explain it to myself and to help retain the thought) 14:22
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librasteve_ rakudoweekly.blog/2025/08/25/2025-...reducible/ 19:10
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lucs Given the following grammar: 22:27
grammar Baz { token TOP { <D>+ }; token D { \d+ x+ }; }
doing:
say Baz.parse("111xx2xxx33x")<D>;
gives:
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lucs [｢111xx｣ ｢2xxx｣ ｢33x｣] 22:27
Is it possible to wrap that 'x+' so that it gets consumed but not captured, which would result in: 22:28
[｢111｣ ｢2｣ ｢33｣]
?
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