All challenges
Code AnalysisIntermediate 60s

Trace: Set Has Check

What does this print?
Starter code
const tags=new Set(['js','css','html']);
console.log(tags.has('JS'))

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