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Peak code reuse (eviltoast.org)

submitted 1 day ago by orhtej2@eviltoast.org to c/programmer_humor@programming.dev

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[–] Decq@lemmy.world 1 points 18 hours ago* (last edited 18 hours ago) (2 children)

If string return nan, else % 2

So now you return a number type if it's a string and a boolean if it's an integer. How does that make sense?

The is-even lib exists to sanitize input by throwing an exception which imho is better.

Edit: having looked at the code better. Apparently it still allows string coercion (boo). It only checks for non integer numbers.

[–] bobo@lemmy.ml 1 points 17 hours ago

Good point, but you can do if === true... and else if === false...

But definitely better to throw an error instead of nan.