Code RoomUnseen tickets linear search
MediumPrep Room Coding #1935

Unseen tickets linear search

Code reviewCode quality & reviewMid–Senior~18 min

Review this JavaScript function that returns tickets not yet seen, given an array of already-seen ids. Both arrays can be large.

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 18 min
Mark a line and say what kind of problem it is.0 findings
1function unseenTickets(tickets, seenIds) {
2 return tickets.filter(t => !seenIds.includes(t.id));
3}
Which questions mattered is sealed until you submit. Telling you now would just be handing over the edge cases.