All challenges
Code AnalysisBeginner 45s

Unit test example

What does this Jest test verify?
Starter code
test("adds numbers", () => {
  expect(add(2, 3)).toBe(5);
});

Think you can answer under pressure?

Get matched and answer live questions in 3-minute 1v1 battles. Elo ranking, badge tiers and bragging rights on the line.

Play this in a 3-minute battle