ts-toolbelt
Version:
TypeScript's largest utility library
29 lines (28 loc) • 828 B
TypeScript
import { _Drop } from './Drop';
import { _Take } from './Take';
import { Cast } from '../Any/Cast';
import { Append } from './Append';
import { List } from './List';
import { Extends } from '../Any/Extends';
/**
* @hidden
*/
declare type __Group<L extends List, N extends number, LN extends List = []> = {
0: __Group<_Drop<L, N>, N, Append<LN, _Take<L, N>>>;
1: LN;
}[Extends<L, List<never>>];
/**
* @hidden
*/
export declare type _Group<L extends List, N extends number> = __Group<L, N> extends infer X ? Cast<X, List> : never;
/**
* Split `L` into sub-[[List]]s every `N`
* @param L to group
* @param N to split at
* @returns [[List]]
* @example
* ```ts
* ```
*/
export declare type Group<L extends List, N extends number> = L extends unknown ? N extends unknown ? _Group<L, N> : never : never;
export {};