All challenges
Code AnalysisBeginner 45s

Spread merge (a09)

What does this code output?
Starter code
const a = { x: 1 };
const b = { y: 2 };
const c = { ...a, ...b };
console.log(c.y);

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