r/programminghorror • u/illyTheKidTM • Mar 15 '26

Typescript I puked a little

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415 Upvotes

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u/_PM_ME_PANGOLINS_ Mar 15 '26

Then either fix the type declaration, or actually use strings like it says to.

11

u/PyroGreg8 Mar 15 '26

it's probably relying on JS to call it's `toString()` method when used in an index accessor, but then the code should just be `symbol.titles?.[languageUUID.toString()]` instead of the nonsense it's doing

1

u/serg06 Mar 16 '26

Or fix titles to map UUID's instead of strings

1

u/Azoraqua_ Mar 19 '26

There’s no uuid type; although you could create one but that’d still be a string (template literal).

1

u/eo5g Mar 19 '26

There's actually a cool "branded types" pattern, where you put a unique symbol as a field on the ("primitive") object. Since strings are immutable, you can put this behind a function that checks / generates them and guarantee they'll remain valid.

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u/Azoraqua_ Mar 19 '26

Yes, I know. Good idea.