Yo, just curious about something in TS. type UnionKey = "a"

Question

Yo, just curious about something in TS. type UnionKey = "a"

| "b";

type UnionKeyObj = {
[key in UnionKey]: string;
}

const myObj: UnionKeyObj = { a: "hi" } // err, prop "b" missing

I can do this to type the keys of the obj as every value of the union, but what if I don't necessarily want every value, and just want to restrict keys to the possibilities in the union?

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07.11.2021

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ＭＵＴＨＵ・ＫＵＭＡＲ「メーカー」 🔺 · Accepted Answer

ＭＵＴＨＵ・ＫＵＭＡＲ「メーカー」 🔺

[]?:

0

07.11.2021

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Yo, just curious about something in TS. type UnionKey = "a"

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