13 - Hello World

This type challenge is laughably easy, but don't worry: we get a chance to look at the testing environment and discuss the approach to using builtins and prior solutions. Tune in every day for the next challenge!

🎥 Video Explanation

🔢 Code

import type { Equal, Expect, NotAny } from './test-utils'

type A1 = NotAny<HelloWorld>
type B1 = true;
type C1 = Expect<Equal<A1, B1>>;

type A2 = HelloWorld
type B2 = string;
type C2 = Expect<Equal<A2, B2>>;

// ============= Your Code Here =============
type HelloWorld = string;

➕ More Solutions

For more video solutions to other challenges: see the umbrella list! #21338