wtfjs

What language doesn’t have its own set of absolutely monstrous footguns? https://github.com/denysdovhan/wtfjs - https://github.com/satwikkansal/wtfpython - https://news.ycombinator.com/item?id=31216080 - https://www.dolthub.com/blog/2023-08-16-go-pitfalls/ are all examples of pitfalls of a few languages. I’m not going to defend all of the ones C(++) has but stuff like deref’ing null or integer overflow or out of bounds access has its roots in sanity, it just looks insane today. There are tools for many/most of these and if you’re not using them you’re doing it wrong.

Yeah... I'm just saying I haven't seen anything close to these things: https://github.com/denysdovhan/wtfjs https://github.com/satwikkansal/wtfpython

Python may not be the best example, but some other languages also exist and are both less "weird" than https://github.com/denysdovhan/wtfjs and fast (e.g. see http://luajit.org/ which is far less complex than V8).

Attempt to give a serious answer: Javascript, as a language, has some bizarre return types that can make the kind of thorough testing required in spaceflight difficult. (See: https://github.com/denysdovhan/wtfjs) It also has a reputation, like PHP, as being utilized by inexperienced programmers who write poorly structured, poorly test, bloated, and slow code that often crashes and fails. If you want fast, light weight, reliable, well structured, testable, and ultimately very stable code Javascript would seem to be a poor choice within the parameters required for a space vehicle. (Maybe this is a good place to ask, anyone have a recommendation for static testing of JS?)

From 2010: https://news.ycombinator.com/item?id=1121932 https://github.com/denysdovhan/wtfjs My my, how HN sensibilities change over time. Hacker news, the place where the language police now rains supreme eh?

I've tried it on a few of the wtfjs examples, and it explains the snippets surprisingly well, sometimes even better than the original explanations! https://whatdoesthiscodedo.com/g/cfa4c2c https://github.com/denysdovhan/wtfjs

Perhaps this? https://github.com/denysdovhan/wtfjs

That's Javascript for you. Summing arrays calls `.toString()` on them, and two empty string gives you a new empty string. [].toString() === '' [] + [] === '' + '' === '' https://github.com/denysdovhan/wtfjs#adding-arrays

> Any non-trivial code work is done in JavaScript, anyway. JavaScript is strongly-typed though, it just lacks a way to declare types. One can easily restrict types in script code (using `typeof` for primitives and `instanceof` for object prototypes). People refer to it as "weakly-typed" because most (but not all) of the built-in types have implicit conversions to other types; and many of which are non-obvious: https://github.com/denysdovhan/wtfjs

No, I'm talking about js as a whole. Standard library is crap, inconsistent, even the most basic of naming conventions are not followed anywhere. The fact that the standard library jumps between camel case, pascal case, snake case and unicase at random is a perfect example. The list of absurdities is beyond ridiculous[1]. [1] https://github.com/denysdovhan/wtfjs