How can I make a typescript generic less specific?

Asked May 06 '22 at 22:15

Active May 06 '22 at 22:15

Viewed 65 times

When typescript captures generics it captures them very specifically which can lead to complications.

How can I make this "LessSpecific" type dynamically return the less specific type of the provided argument?

const value: LessSpecific<'I am a string literal!'>
// Expected type of value: string

asked May 06 '22 at 22:15

Swishilicous

Does this answer your question? [Widen a type with a type generic in Typescript](https://stackoverflow.com/questions/59355418/widen-a-type-with-a-type-generic-in-typescript) – Tobias S. May 06 '22 at 22:21
@TobiasS. I was looking for a more dynamic way to convert the type that doesn't require hardcoding every edge case but if this is the only way then yes. – Swishilicous May 06 '22 at 22:24
Aren't there only the three cases for `string` `number` and `boolean` ? – Tobias S. May 06 '22 at 22:26
No, there would be more cases for like arrays, objects, ect. – Swishilicous May 06 '22 at 22:38
Does [this](https://tsplay.dev/mp9VBW) work for you? – Tobias S. May 06 '22 at 23:00

0 Answers0