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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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| habere-et-disper | Why do I need .cache here as it seems bound to $foo already... | 08:14 | |
| m: say gather for ^'raku'.chars -> $foo { take 'raku'.comb.rotate( $foo.cache ) } | |||
| camelia | ((a k u r) (a k u r) (a k u r) (a k u r)) | ||
| habere-et-disper | m: say gather for ^'raku'.chars -> $foo { take 'raku'.comb.rotate( $foo ) } | 08:15 | |
| camelia | The iterator of this Seq is already in use/consumed by another Seq (you might solve this by adding .cache on usages of the Seq, or by assigning the Seq into an array) in block <unit> at <tmp> line 1 |
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| rcmlz | Apparently the type changes by using .cache | 11:27 | |
| m: for ^'raku'.chars -> $foo { say $foo.WHAT }; for ^'raku'.chars -> $foo { say $foo.cache.WHAT }; | |||
| Raku eval | (Int) (Int) (Int) (Int) (List) (List) (List) (List) | ||
| nahita3882 | issue seems to be .rotate(0) rather than caching or not | 11:51 | |
| or maybe both idk, but: | 11:52 | ||
| m: (3, 4).Seq.rotate(0).say | 11:53 | ||
| Raku eval | Exit code: 1 The iterator of this Seq is already in use/consumed by another Seq (you might solve this by adding .cache on usages of the Seq, or by assigning the Seq into an array) in block <unit> at main.raku line 1 | ||
| nahita3882 | .rotate(0) on a Seq returns self, i guess ther eis something with that | ||
| also in the working version habere-et-disper shares with .cache in, all outputs are (a k u r), i.e., when $foo is 1, which is very interesting, no? | 11:55 | ||
| habere-et-disper | Why can't I use Empty here... | 12:02 | |
| m: say ( (3,2,1), { .skip } ...^ :!elems ) | 12:03 | ||
| camelia | ((3 2 1) (2 1) (1)) | ||
| habere-et-disper | m: say ( (3,2,1), { .skip } ...^ Empty ) | ||
| camelia | Cannot get sequence endpoint from an empty list (use * or :!elems instead?) in block <unit> at <tmp> line 1 |
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| habere-et-disper | The sequence operator endpoint is smartmatching against each generated element and... | 12:05 | |
| m: say Empty ~~ () | |||
| camelia | True | ||
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| habere-et-disper | It also seems clearer to state something in a positive (non-negating) way as there is less unravelling. | 12:37 | |
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