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As usual, he's copying someone else who's been doing this for years: https://www.npmjs.com/package/is-number https://www.npmjs.com/package/is-number - and then

As usual, he's copying someone else who's been doing this for years: https://www.npmjs.com/package/is-number https://www.npmjs.com/package/is-number - and then look and see shit like is odd, is even (yes two separate packages because who can possibly remember how to get/compare the negated value of a boolean??) Honestly for how much attention JavaScript has gotten in the last 15 years it's ridiculous how shit it's type system really is. The only type related "improvement" was adding the class keyword because apparently the same people who don't understand "% 2" also don't understand prototypal inheritance.

zahlman 7mo ago
To be fair, prototypal inheritance is relatively uncommon language design. I'd rank it as considerably harder to understand than the % operator.
- stephenr 7mo ago
  That's a good point, it's only been around for 30 years, and used on 95% of websites. It's not really popular enough for a developer to take an hour or two to read how it works.
  - saghm 7mo ago
    The word "used" is doing some heavy lifting there. Not all usage is equal, and the fact that it's involved under the hood isn't enough to imply anything significant. Subatomic physics is used by 100% of websites and has been around for billions of years, but that's not a reason to expect every web developer to have a working knowledge of electron fields.
    - stephenr 7mo ago
      Fair point. Let's compromise and say that whoever is responsible for involving (javascript|electron fields) in the display of a website, should each understand their respective field. I don't expect a physicist or even an electrical engineer or cpu designer to necessarily understand JavaScript. I don't expect a JavaScript developer to understand electron fields. I do expect a developer who is writing JavaScript to understand JavaScript. Similarly I would expect the physicist/etc to understand how electrons work.
      - saghm 7mo ago
        The issue with this framing is that understanding something isn't a binary; you don't need to be an expert in every feature of a programming language to be able to write useful programs in it. The comment above describing prototypical inheritance as esoteric was making the point that you conflated the modulus operator with it as if they're equally easy to understand. Your responses don't seem to indicate you agree with this. It sounds like you expect everyone to understand 100% of a language before they ever write any code in it, and that strikes me as silly; not everyone learns the same way, and some people learn better through practice than by reading about thinks without practice. People sometimes have the perception that anyone who prefers a different way of learning than them is just lazy or stupid for not being able to learn in the way that they happen to prefer, and I think that's both reductive and harmful.
        stephenr 7mo ago
        Given that they literally changed the language to support the class keyword, I think we can safely assume it isn't just the beginners who never bothered to learn how prototypical inheritance works.

zahlman 7mo ago

To be fair, prototypal inheritance is relatively uncommon language design. I'd rank it as considerably harder to understand than the % operator.

stephenr 7mo ago
That's a good point, it's only been around for 30 years, and used on 95% of websites. It's not really popular enough for a developer to take an hour or two to read how it works.
- saghm 7mo ago
  The word "used" is doing some heavy lifting there. Not all usage is equal, and the fact that it's involved under the hood isn't enough to imply anything significant. Subatomic physics is used by 100% of websites and has been around for billions of years, but that's not a reason to expect every web developer to have a working knowledge of electron fields.
  - stephenr 7mo ago
    Fair point. Let's compromise and say that whoever is responsible for involving (javascript|electron fields) in the display of a website, should each understand their respective field. I don't expect a physicist or even an electrical engineer or cpu designer to necessarily understand JavaScript. I don't expect a JavaScript developer to understand electron fields. I do expect a developer who is writing JavaScript to understand JavaScript. Similarly I would expect the physicist/etc to understand how electrons work.
    - saghm 7mo ago
      The issue with this framing is that understanding something isn't a binary; you don't need to be an expert in every feature of a programming language to be able to write useful programs in it. The comment above describing prototypical inheritance as esoteric was making the point that you conflated the modulus operator with it as if they're equally easy to understand. Your responses don't seem to indicate you agree with this. It sounds like you expect everyone to understand 100% of a language before they ever write any code in it, and that strikes me as silly; not everyone learns the same way, and some people learn better through practice than by reading about thinks without practice. People sometimes have the perception that anyone who prefers a different way of learning than them is just lazy or stupid for not being able to learn in the way that they happen to prefer, and I think that's both reductive and harmful.
      - stephenr 7mo ago
        Given that they literally changed the language to support the class keyword, I think we can safely assume it isn't just the beginners who never bothered to learn how prototypical inheritance works.