Code RoomDedupe by email quadratic
MediumPrep Room Coding #1702

Dedupe by email quadratic

Code reviewCode quality & reviewMid–Senior~20 min

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.

0:00 of about 20 min
Mark a line and say what kind of problem it is.0 findings
1function dedupeByEmail(users) {
2 const result = [];
3 for (const user of users) {
4 const seen = result.some(u => u.email === user.email);
5 if (!seen) {
6 result.push(user);
7 }
8 }
9 return result;
10}
Which questions mattered is sealed until you submit. Telling you now would just be handing over the edge cases.