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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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| jaguart | ll | 10:00 | |
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| stevied | is there any good reason I can do `$str.chop(1)` but not `$str.trans('a' => 'b')` | 12:50 | |
| the former changes the string in place, the latter does not. Trying to figure out what the reason for the inconsistency is so I can remember it | |||
| Kaiepi | that's surprising | 12:52 | |
| m:``` | |||
| my $s = "chopped\n"; | |||
| $s.chop: 1; | |||
| print $s | |||
| ``` | |||
| yabobay | i don't remember which language this was, but there is one language where str.method() doesn't modify the string in place, but str.!method() does (...or something like that, where you put some punctuation somewhere in the method name) | 12:54 | |
| stevied | i think ruby does that | ||
| yabobay | yea probably that | 12:55 | |
| Kaiepi | this could be a break | ||
| yabobay | i wonder how it's done in ruby. do they just have multiple functions, or maybe it's just syntactic sugar for just assigning to the same variable | 12:56 | |
| Kaiepi | no bisectable in here, but there is in #raku | ||
| stevied | oh, wait, my bad. $name.chop(1) does not modify $name | 13:00 | |
| I was reading the code I had wrong. sorry 😦 | |||
| Kaiepi | ah right, shell prints % or whatever w/o the newline | 13:02 | |
| lizmat | m: my $a = "foo"; $a .= chop; dd $a | 13:18 | |
| camelia | Str $a = "fo" | ||
| lizmat | ^^ to do it in place | ||
| sorta | |||
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| Rog | Yeah afaik nothing actually changes strings in place except smartmatch with destructive substitution | 16:08 | |
| And even that doesn’t mutate the original string technically I think | |||
| In the sense that the underlying data is not shuffled around, just a new value generated and stuck in the container | 16:09 | ||
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| guifa | Rog: that's correct. Strings are immutable in Raku. If you try to do the in place substitution on a bound variable, you'll have issues. | 23:45 | |
| m: my $a = 'foo'; $a ~~Â s/f/F/; say $a; # no problems | |||
| camelia | Foo | ||
| guifa | m: my $a := 'foo'; $a ~~Â s/f/F/; say $a; # oops | ||
| camelia | Cannot modify an immutable Str (foo) in block <unit> at <tmp> line 1 |
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