Type Challenges 459-Flatten

[kscory]

답안을 작성해주세요.

[kscory]

type Flatten<T extends unknown[], Result extends unknown[] = []> = T extends [infer F, ...infer S] 
    ? F extends [...infer U] 
        ? Flatten<[...Flatten<U>, ...S], Result>
        : Flatten<S, [...Result, F]>
    : Result;

[kscory]

아래가 더 나은 정답 같네요

type Flatten<T extends unknown[]> = T extends [infer F, ...infer S]
    ? F extends unknown[] 
        ? [...Flatten<[...F, ...S]>]
        : [F, ...Flatten<S>]
    : [];

[bananana0118]

type Flatten<T extends any[],U extends any[] =[]> =  T extends [infer X , ...infer Y] ?
  X extends any[]?
  Flatten<[...X,...Y],U> :Flatten<[...Y], [...U, X]>
  : U

[bananana0118]

아래가 더 나은 정답 같네요

type Flatten<T extends unknown[]> = T extends [infer F, ...infer S]
    ? F extends unknown[] 
        ? [...Flatten<[...F, ...S]>]
        : [F, ...Flatten<S>]
    : [];

와 이렇게 보니까 간단하네 ..

[wogha95]

type Flatten<T extends any[]> = T extends [infer A, ...infer B]
  ? A extends any[]
    ? [...Flatten<[...A, ...B]>]
    : [A, ...Flatten<B>]
  : [];