This solution is generated by ChatGPT, correctness is not guaranteed. You might also be able to find a solution fromcommunity posts.

AI solution for TypeScript puzzle on
26. implement ReverseTuple<T>


type ReverseTuple<T extends any[]> = T extends [infer H, ...infer R] ? [...ReverseTuple<R>, H] : [];


  • T extends any[] ensures that T is a tuple type
  • T extends [infer H, ...infer R] deconstructs the tuple into its first element H and the remaining elements R
  • infer allows the type inference of H and R
  • infer R results in a tuple type for R
  • ? starts the ternary operator
  • ...ReverseTuple<R> recursively calls ReverseTuple on R and spreads the reversed tuple
  • , H appends the first element H to the end
  • : [] returns an empty array if T is an empty tuple.