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getFrog@piefed.social ⁨3⁩ ⁨weeks⁩ ago

• starik@lemmy.zip ⁨3⁩ ⁨weeks⁩ ago

  Sadly, it’s not. The other three churn out books riddled with the n-word daily.

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• webpack@ani.social ⁨3⁩ ⁨weeks⁩ ago

  great example of the difference between Some(0) and None

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• ChaoticNeutralCzech@feddit.org ⁨3⁩ ⁨weeks⁩ ago

  There are different kinds of non-number “values” for numeric variables. Is this ∞, Overflow, NaN or N/A?

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  • getFrog@piefed.social ⁨3⁩ ⁨weeks⁩ ago

    I’m a JavaScript girl, I only know about null and undefined. But my guess would be N/A, just by method of elimination?

    ∞: They said the N-word, but if we ask “did they say the N-word yesterday?” and go back a day if the answer is no, we will be iterating forever.
    Overflow: They said the N-word sometime before Jan 1st 1970.
    NaN: Days since the last time they said the N-word: “yes”

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    • BlackRoseAmongThorns@slrpnk.net ⁨3⁩ ⁨weeks⁩ ago

      All these special values are from the spec for floating point numbers, integers don’t have them, in JS specifically all numbers are floats.

      An Option<int> does a good of showing intent.

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    • ChaoticNeutralCzech@feddit.org ⁨3⁩ ⁨weeks⁩ ago

      There are actually two interpretations of N/A:

      • N/A (not available): There is lost media so it can’t be evaluated.
      • N/A (not applicable): The show is in sign language so evaluating that is outside the scope of this string-matching program.

      Meanwhile, undefined seems to mean the value has not yet been evaluated. Maybe null is really the best.

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    • elephantium@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

      🎵 I’m a Java girl in a Java world…

      Sadly, JavaScript breaks the cadence :(

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    • NikkiDimes@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

      Whaaat Javascript is famously known for being extremely weird with NaN values lol

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      • humorlessrepost@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

        Yeah but we almost never use them intentionally. In almost any project, NaN only happens if there’s a bug. The others are regularly on purpose.

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  • luciferofastora@feddit.org ⁨3⁩ ⁨weeks⁩ ago

    I mean, NaN implies there exists some value, it’s just not a numerical one. null days there is none at all.

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