00010-medium-tuple-to-union.ts

// ============= Test Cases =============
import type { Equal, Expect } from './test-utils'

type cases = [
  Expect<Equal<TupleToUnion<[123, '456', true]>, 123 | '456' | true>>,
  Expect<Equal<TupleToUnion<[123]>, 123>>
]

// ============= Your Code Here =============
// type TupleToUnion<T extends unknown[]> = T[number]

type TupleToUnion<T> = T extends (infer R)[] ? R : never