type Unshift<T extends unknown[], U> = [U,...T];

Solution by BangTtagGum #37305

type Unshift<T extends any[], U> = [U, ...T];

Solution by Nakamura25257 #37263

type Unshift<T extends unknown[], U> = [U, ...T];

Solution by djdidi #37138

Same answer as Push challenge

type Unshift<T extends unknown[], U> = [U,...T]

Solution by Anonymous961 #37063

type Unshift<T extends any[], U> = [U, ...T]

Solution by 359Steve #37021

// your answers
type Unshift<T extends readonly any[], U> = [U, ...T];

Solution by AlexBraunMagic #36911

type Unshift<T extends unknown[], U> = [U, ...T];

Solution by shaishab316 #36849

type Unshift<T extends any[], U> = [U, ...T];

/* _____________ Test Cases _____________ */
import type { Equal, Expect } from '@type-challenges/utils'

type cases = [
  Expect<Equal<Unshift<[], 1>, [1]>>,
  Expect<Equal<Unshift<[1, 2], 0>, [0, 1, 2]>>,
  Expect<Equal<Unshift<['1', 2, '3'], boolean>, [boolean, '1', 2, '3']>>,
]

Solution by AnastasiaSv #36769

type Unshift<T extends any[], U> = [U, ...T]

Solution by tungulin #36720

// 여기 풀이를 입력하세요
type Unshift<T extends readonly any[], U> = [U, ...T]

Solution by seungdeok #36683

// your answers

type Unshift<T, U> = T extends [...infer TType] ? [U , ...TType] : never;

Suggestions are welcomed 🎉

Solution by SubramaniyanTN #36676

type Unshift<T extends any[], U> = [U,...T] 

Solution by tungulin #36609

type Unshift<T extends any[], U> = [U, ...T]

Solution by ChemieAi #36557

type Unshift<T extends Array<unknown>, U> = [U, ...T]

Solution by Divcutu #36467

type Unshift<T extends readonly any[], U> = [U , ...T]

Solution by alirezaprime #36418

type Unshift<T extends readonly  unknown[], U> = [U ,...T]

Solution by HelloWook #36402

// your answers
type Unshift<T extends readonly any[], U> = [U, ...T];

Solution by justBadProgrammer #36393

type Unshift<T extends any[], U> = [U,...T]

Solution by tac-tac-go #36362

type Unshift<T extends any[], U> = [U, ...T]

Solution by 1Alex4949031 #36317

type Includes<T extends readonly any[], U> =
  T extends [infer First, ...infer Rest]
    ? Equal<First, U> extends true
      ? true
      : Includes<Rest, U>
    : false

Solution by 1Alex4949031 #36314

type Unshift<T extends unknown[], U> = [U, ...T]

Solution by asylbekduldiev #36296

type Unshift<T extends unknown[], U> = [U, ...T]

Solution by reonce #36051

type Unshift<T extends any[], U> = [U, ...T]

Solution by karazyabko #36033

type Unshift<T extends unknown[], U> = [U, ...T];

Solution by codingaring #35943

// 你的答案
type Unshift<T extends readonly unknown[], U extends unknown> = [U, ...T]

Solution by naruto-823 #35796

type Unshift<T extends unknown[], U> = [U, ...T]

Solution by ydkim120 #35733

type Unshift<T extends Array<unknown> | ReadonlyArray<unknown>, U> = [U, ...T]

Solution by gangnamssal #35494

type Unshift<T extends unknown [], U> = [U, ...T]

Solution by RanungPark #35444

// your answers
type Unshift<T extends unknown[], U> = [U, ...T];

const myShiftedData: Unshift<[1, 2], 0> = [0, 1, 2];

Solution by Sathiyapramod #35415

type Unshift<T extends unknown[], U> = [U, ...T]

Solution by gyeounjeong #35362