#ruby on 2021-03-27 — irc logs at freenode.irclog.whitequark.org

2021-03-15 23:38 havenwood changed the topic of #ruby to: Rules: https://ruby-community.com | Ruby 3.0.0, 2.7.2, 2.6.6: https://www.ruby-lang.org | Paste 4+ lines to: https://gist.github.com | Books: https://goo.gl/wpGhoQ | Logs: https://irclog.whitequark.org/ruby | BLM <3

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01:09 <mouseghost> meow meow, is anyone up? is it possible to make an array with a "hole" in one line? like a=[1]; a[3]=2, but with some syntax like [1,3=>2]

01:09 <mouseghost> ?

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01:22 <havenwood> mouseghost: You can just do it!

01:23 <havenwood> &>> a = [1]; a[2] = 42; a

01:23 <rubydoc> # => [1, nil, 42] (https://carc.in/#/r/anbd)

01:23 <havenwood> mouseghost: Oh, I misread.

01:23 <mouseghost> yeah but i was hoping that there was some different syntax ;p

01:24 <havenwood> &>> [1, [nil] * 2, 3]

01:24 <rubydoc> # => [1, [nil, nil], 3] (https://carc.in/#/r/anbe)

01:24 <havenwood> oops

01:24 <havenwood> &>> [1, *[nil] * 2, 3]

01:24 <rubydoc> # => [1, nil, nil, 3] (https://carc.in/#/r/anbf)

01:24 <havenwood> mouseghost: ^

01:24 <havenwood> not pretty

01:25 <mouseghost> brrr not pretty indeed

01:25 <mouseghost> though thanks :3

01:25 <havenwood> mouseghost: or you could #fill and shovel on the end?

01:25 <havenwood> mouseghost: But no, there's not that specific syntax.

01:25 <mouseghost> thanks

01:25 <havenwood> any time!

01:26 <mouseghost> mlem :3

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03:30 <leftylink> can probably arrange some things with Array.new with block. but even though it would be one line, it would be more code anyway, so it'd not really be worth

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03:37 <havenwood> Or: [1].tap { _1[3] = 3 } #=> [1, nil, nil, 3]

03:37 <havenwood> Two lines is appealing. :P

03:39 <havenwood> &>> [1].fill(3, 3, 1)

03:39 <rubydoc> # => [1, nil, nil, 3] (https://carc.in/#/r/anbl)

03:40 <havenwood> leftylink: I think Array#fill is the Ruby way. Just isn't common enough for an inline syntax.

03:42 <leftylink> it does seem quite reasonable. better than what I might have been thinking of

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06:21 <hd1> https://dpaste.com/9QX6K6U77 stupid question time?

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08:32 <al2o3-cr> Array#insert

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