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☆ Yσɠƚԋσʂ ☆ to Programmer Humor@lemmy.mlEnglish • 1 month ago

Which of these javascript expressions is false?

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Which of these javascript expressions is false?

lemmy.ml

☆ Yσɠƚԋσʂ ☆ to Programmer Humor@lemmy.mlEnglish • 1 month ago
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  • cross-posted to:
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  • davel [he/him]
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    30•1 month ago

    Definitionally in IEEE floating point, NaN is not equal to anything, including itself. The only real abomination here is B:

    > Math.min()
    Infinity
    > Math.max()
    -Infinity
    > 
    
    • Ephera
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      21•1 month ago

      I mean, B does make some amount of sense, if you realize that it’s supposed to give you the maximum among the parameters (so you’d normally call it as Math.max(5, 3) === 5).

      Well, and you can call that with zero parameters, because you can spread an array into it, which might have zero length. And then given these conditions, and if you don’t want to throw an error, then -Infinity is kind of the least bad remaining option, as it’s likely to generally work with the rest of your logic.

      • NewDark [he/him]
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        5•1 month ago

        I love javascript. It’s so insane in such fun ways to prevent itself from throwing errors. It’s got like a naive cute charm to it ya know?

      • mathemachristian [he/him]
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        4•1 month ago

        thats how we often do it in math. The minimum over the empty set is ∞

  • ThotDragon
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    6•1 month ago

    I’m guessing C

    • @CapriciousDay@lemmy.ml
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      2•
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      24 days ago

      deleted by creator

    • ☆ Yσɠƚԋσʂ ☆OP
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      2•1 month ago

      yup

  • TFed 🍉🌻
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    4•1 month ago

    deleted by creator

  • @salmoura@lemmy.eco.br
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    3•1 month ago

    It can’t be anything other than B, right?

    • ☆ Yσɠƚԋσʂ ☆OP
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      7•1 month ago

      it’s not B

  • @twice_hatch@midwest.social
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    3•1 month ago

    Moot! Those ALL fail code review!

  • @lowleveldata@programming.dev
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    3•1 month ago

    A && B && C && D

  • ClathrateG [none/use name]
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    1•
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    1 month ago

    is D and two single quotes, or one double quote?

    • ☆ Yσɠƚԋσʂ ☆OP
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      3•1 month ago

      I’m guessing single quotes, since a single double quote isn’t valid syntax.

      • @MyNameIsRichard@lemmy.ml
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        3•1 month ago

        Yeah, not even JavaScript is that insane!

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