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The birth of JS (lemmy.world)

submitted 1 year ago by [email protected] to c/[email protected]

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[–] [email protected] 40 points 1 year ago (15 children)

This is one of the most educational and entertaining reads on the internet, if you are into that kind of thing:

https://github.com/denysdovhan/wtfjs

[–] [email protected] 32 points 1 year ago (13 children)

Has anyone actually read through that? Reading the first few examples and it's just not understanding how languages work half of the time:

!!"false" == !!"true"; // -> true
!!"false" === !!"true"; // -> true

Wow, no shit, non-empty string coerces to true, who would've guessed! Did you know that !!"bullshit" === !!"true" as well? Mind=blown.

NaN === NaN; // -> false

Again, no shit, that's in the NaN specification and the page even mentions it, so why even include it?

[–] [email protected] 1 points 1 year ago

Also, a huge proportion of the list is just not understanding IEEE floats behaviour and blaming the language for it. Exactly like this post is doing. All those weird number things js does is because it only uses floats for everything and every language that uses floats will behave the exact same way.

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