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type-challenges-solutions/ru/easy-first #244

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utterances-bot opened this issue Sep 19, 2022 · 2 comments
Open

type-challenges-solutions/ru/easy-first #244

utterances-bot opened this issue Sep 19, 2022 · 2 comments

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@utterances-bot
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First of Array

This project is aimed at helping you better understand how the type system works, writing your own utilities, or just having fun with the challenges.

https://ghaiklor.github.io/type-challenges-solutions/ru/easy-first.html

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rajdee commented Sep 19, 2022

Я это решил несколько иначе, но у тебя выглядит проще и понятнее :)

type First<T extends any[]> = T extends { 0: unknown } ? T[0] : never

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Тоже по-другому решил

type First<T extends any[]> = T['length'] extends 0 ? never : T[0]

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