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does this code run rule (lemmy.ml)

submitted 10 months ago by KingThrillgore@lemmy.ml to c/196@lemmy.blahaj.zone

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[–] Synthead@lemmy.world 14 points 10 months ago (6 children)

Ruby has a method for this :)

[1] pry(main)> vars = ["one", "two", nil, "three"]
=> ["one", "two", nil, "three"]
[2] pry(main)> vars.compact
=> ["one", "two", "three"]

In Ruby, 0 and "" is truthy, so this would be a little different than the Python interpretation. You could filter with #select, but you'd typically write your code around this instead.

[–] CoderKat@lemm.ee 19 points 10 months ago (4 children)

In Ruby, 0 and "" is truthy,

What the fuck?

[–] diemartin@sh.itjust.works 8 points 10 months ago

Lua is the same. Only false and nil are "falsey".

I remember I fixed a bug in a mod for Minetest that assumed 0 was false and caused an infinite loop.

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