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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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| lizmat | and yet another Rakudo Weekly News hits the Net: rakudoweekly.blog/2022/08/15/2022-...succeeded/ | 11:38 | |
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| deoac | sub foo {say "whoops!"}; debug(foo()); | 16:43 | |
| How do I write sub debug() to get this to work? | 16:44 | ||
| Wait, that's wrone | |||
| class C { method foo {say "whoops!"};}; my $c = C.new; debug(c.foo()); | 16:45 | ||
| where the argument to debug() could be any executable code, principally say() and print() statements. | 16:47 | ||
| lizmat | m: my &debug = -> { }; debug(42); &debug = &say; debug(42) | 17:00 | |
| camelia | Too many positionals passed; expected 0 arguments but got 1 in block <unit> at <tmp> line 1 |
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| lizmat | m: my &debug = -> $ { }; debug(42); &debug = &say; debug(42) | ||
| camelia | 42 | ||
| lizmat | first time debug is called, is an effective no-op, the second time it says what it got | 17:01 | |
| Nemokosch | is this the same thing? | ||
| lizmat | it's an example of code in a variable | ||
| m: sub foo($value, &debug = -> $ { }) { debug $value }; foo 42; foo( 42, &say ) | 17:02 | ||
| camelia | 42 | ||
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