UUIDs are neat. y'know, cfbff0d1-9375-5685-968c-48ce8b15ae17 type of shit. if you're like me until a few days ago, all you know about the types of UUID is that v4 is the good one. but why are there other ones? is there a secret better one? why are the dashes asymmetrical? let's take a (roughly paraphrased from wikipedia and probably not quite accurate) look.
witchy girl/virtual snep
- she/her
- lune.gay/
^ computer witch ^
^ self-taught 3D modeller ^
^ 🏳️⚧️, fan of girls ^
^ old enough ^
^ anarchist 🟥⬛^
- pfp cropped from
by
srnk /
@srnk - banner is three combined refs, each by girlpillz / @girlpillz
see them uncombined here
you can always find me here
lune.gay/the blog specifically
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in reply to @cactus's post:
YOU WROTE THIS ENTIRE POST JUST SO YOU COULD MAKE THAT JOKE AT THE END 🤣
But also, this is extremely informative! I was considering using UUID to uniquely identify all database content in a CMS engine I'm writing from (almost) scratch for my own website, and this gives me a lot more information, concisely summarized, to digest about them! Thank you!
this was a fun read!
you know, ive always rolled my own identifier format (mostly for shits and giggles), and usually when i do so i get a little voice in my head worried that rolling our own is Bad because UUID is The Standard and probably Knows Better. but now i see that the UUID folk are also just having shits and giggles and all of their formats are fucked up too 😌
I had to dig through a lot of that information for a previous job (a predecessor decided that he could design a better scheme, and somehow, nobody kicked him in the shins to stop him, and I needed to kinda-sorta undo that history and replace his "Peculiar-IDs"), so I can confidently say that this is extremely well done.
This post made me realize I screwed up a migration from numerical to UUID format by generating purely based on numerical ID with the rest as 0s.
Well, that's in production forever.
well, if the variant field winds up as 0, none of the rest of the spec applies, so you're probably fine
I knew v4 was what you use to not let the MAC address be involved anymore but gdang there's a lot going on in uuid-land!
man UUIDs are a bit of a mess huh, I guess there's not really any other way a standard could turn out though
I’m still reading but
this is some 5 Minute Crafts tier lifehackery. please refrain.
was gold and I’m following you now.
I was going to comment on how fantastically written this is until I landed at the very end and it hit me like someone kicking the back of my knee
Mmmm. So if you want to do UUIDs with different hash functions, then teeeechnically you can throw that into v8 and still be in spec!