remeda
Version:
A utility library for JavaScript and Typescript.
11 lines (9 loc) • 464 B
text/typescript
/**
* An array with *exactly* N elements in it.
*
* Only literal N values are supported. For very large N the type might result
* in a recurse depth error. For negative N the type would result in an infinite
* recursion. None of these have protections because this is an internal type!
*/
type NTuple<T, N extends number, Result extends Array<unknown> = []> = Result["length"] extends N ? Result : NTuple<T, N, [...Result, T]>;
export type { NTuple as N };