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feat(question): add #34979 - Construct Tuple By Length

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minhwan Kim 2024-11-07 15:32:29 +00:00
parent c42690e211
commit e6811109d5
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questions/34979-medium-construct-tuple-by-length/README.md Normal file
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Given a generic type `T` and a generic number type `Length extends number`, returns a tuple of type `T` with a length of `Length`.
```ts
type result = ConstructTupleByLength<number, 2>; // [number, number]
```

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questions/34979-medium-construct-tuple-by-length/info.yml Normal file
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difficulty: medium
title: Construct Tuple By Length
tags: tuple, conditional type
related: 7544
author:
github: keepmhwn
name: minhwan Kim

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questions/34979-medium-construct-tuple-by-length/template.ts Normal file
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type ConstructTupleByLength<T, Length extends number> = any;

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questions/34979-medium-construct-tuple-by-length/test-cases.ts Normal file
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import type { Equal, Expect } from '@type-challenges/utils'
import { ExpectFalse, NotEqual } from '@type-challenges/utils'
type cases = [
Expect<Equal<ConstructTupleByLength<unknown, 0>, []>>,
Expect<Equal<ConstructTupleByLength<number | string, 2>, [number | string, number | string]>>,
]