Code Room
Code reviewMedium
Question
Review this JavaScript helper.
What a strong answer looks like
Separate real bugs from style. Rank issues by severity, point at the root cause rather than the symptom, and suggest a concrete fix — specific and kind.
Learn the concepts
function dedupeByEmail(users) { const result = []; for (const user of users) { const seen = result.some(u => u.email === user.email); if (!seen) { result.push(user); } } return result;}Run or narrate your approach, then ask the coach.