Code AnalysisBeginner 45s

slice copy

What does this code output?

Starter code

const arr = [1, 2, 3];
const copy = arr.slice();
copy[0] = 9;
console.log(arr[0]);

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.