type-challenges-solutions/en/medium-mutable

[utterances-bot]

Mutable

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/en/medium-mutable.html

[JanessaTech]

Add contraints to prevent error warning:

type Mutable<T extends readonly unknown[] | {[p in any] : unknown}> = {-readonly [P in keyof T]: T[P]}