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| atroxaper | Hello! is there a way to take an access to private attribute of an object from a method of its class? Like class A { has $!a is built; method plus(A:U: A $one, A $two) { A.new(a => $one!a + $two!a) } | 07:33 | |
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| ssaint | When is Raku supporting mobile (android, ios, etc) development? | 10:04 | |
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| SmokeMachine | m: class Bla { has $!value is built; method !value { $!value }; method plus(::?CLASS:U: ::?CLASS:D $a, ::?CLASS:D $b) { ::?CLASS.new: :value($a!value + $b!value) } }; say Bla.plus: Bla.new(:29value), Bla.new: :13value # something like this, atroxaper ? | 10:53 | |
| camelia | Bla.new(value => 42) | ||
| atroxaper | SmokeMachine: Yes. I've discovered it already - i can make a private method to retrieve a private value. I thought there should be some syntax construction to avoid an explicit method creation | 10:56 | |
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| shift-eleven | I was looking through the docs, but I couldn't find a filter or where method that acts like C#'s `.Where()` method which takes a predicate and gets elements based off it, is there a method like that or is there an alternative way to do this? | 14:50 | |
| Nemokosch | it's `grep` | 14:59 | |
| while C# was inspired by SQL, Perl and Raku were straight-up inspired by Unix tools 😄 | 15:00 | ||
| by the way, it's often more comfortable to use `map` directly because you can return `Empty` from `map`, indicating that nothing should be returned corresponding to a certain element | 15:01 | ||
| shift-eleven | ah, could you explain the usage of `map` and `Empty` a bit more? | 15:03 | |
| Nemokosch | m: dd (Empty, Empty, Empty) | 15:05 | |
| Raku has <docs.raku.org/type/Slip>s | 15:07 | ||
| Empty is essentially ().Slip | |||
| so when in an array, it flattens into nothing | |||
| well, "array", whatever container actually, could be a list, could be a sequence | |||
| so you could implement a combo of map and grep just by using map | 15:09 | ||
| shift-eleven | ah gotcha, thanks | ||
| ah gotcha, thanks! | |||
| Nemokosch | so, let me take the halves of only even numbers for example | 15:11 | |
| m: ```dd <2731 23 15 4 31 44 62 8374>.map({ $_ %% 2 ?? $_/2 !! Empty });``` | |||
| okay, it ate the discord formatting -.- | 15:12 | ||
| m: ``` | 15:13 | ||
| dd <2731 23 15 4 31 44 62 8374>.map({ $_ %% 2 ?? $_/2 !! Empty }); | |||
| ``` | |||
| _whatever, man_, here it is: | |||
| I guess I could have used _div_ instead of the slash | |||
| shift-eleven | ah, makes sense, thanks! | ||
| Im really liking raku but not having a lot of resources is kinda hard | |||
| Nemokosch | I feel you | ||
| shift-eleven | in terms of learning the language | ||
| Nemokosch | also don't get surprised if you push the language and find something strange that doesn't seem to be described properly | 15:15 | |
| but well that happens when a rather small team is managing a fairly big and complex programming languag | |||
| but well that happens when a rather small team is managing a fairly big and complex programming language | |||
| shift-eleven | true | ||
| Nemokosch | yesterday we figured out that the experimental "is cached" feature works with multimethods now | ||
| shift-eleven | raku is the epitome of what my favorite language would be, OOP mixed in with FP and a little bit of esoteric-ness | ||
| Nemokosch | but it didn't work for several years | ||
| it didn't work with my 2021.08 version either xD | |||
| as of 2021.10, it seems to be fixed 😄 | 15:16 | ||
| anyways, so far, in my own case, Raku seems like a scripting and prototyping heaven | 15:20 | ||
| watch out for the sigils and iterables though, they often work _very_ differently from pattern matching in other languages, be it Javascript or Python or Erlang | 15:22 | ||
| most notably, there is still a lot of structure flattening in the language | 15:23 | ||
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| shift-eleven | ah ok, I dont think thats gonna be much of an issue with my usecases, but handy to keep in mind | 16:17 | |
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