UNPKG

ts-toolbelt

Version:

TypeScript's largest utility library

34 lines (33 loc) 1.3 kB
import { List } from './List'; import { _UnNest } from './UnNest'; import { Cast } from '../Any/Cast'; import { Equals } from '../Any/Equals'; import { Iteration } from '../Iteration/Iteration'; import { IterationOf } from '../Iteration/IterationOf'; import { Extends } from '../Any/Extends'; import { Next } from '../Iteration/Next'; import { Or } from '../Boolean/Or'; import { Boolean } from '../Boolean/_Internal'; /** * @hidden */ declare type __Flatten<L extends List, LO extends List, strict extends Boolean, limit extends Iteration, I extends Iteration = IterationOf<0>> = { 0: __Flatten<_UnNest<L, strict>, L, strict, limit, Next<I>>; 1: L; }[Or<Equals<L, LO>, Extends<limit, I>>]; /** * @hidden */ export declare type _Flatten<L extends List, strict extends Boolean, limit extends number = number> = __Flatten<L, [], strict, IterationOf<limit>> extends infer X ? Cast<X, List> : never; /** * Remove all dimensions of `L` (10 max) * @param L to un-nest * @param strict (?=`1`) `0` to not preserve tuples * @param limit (?=`string`) to stop un-nesting at * @returns [[List]] * @example * ```ts * ``` */ export declare type Flatten<L extends List, strict extends Boolean = 1, limit extends number = number> = L extends unknown ? _Flatten<L, strict, limit> : never; export {};