Code RoomRegex match without anchor

MediumPrep Room Coding #2091

Regex match without anchor

Code reviewCode quality & reviewMid–Senior~16 min

Review this Python validator that checks a username is exactly lowercase letters and digits, 3–16 chars.

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 16 min

Mark a line and say what kind of problem it is.0 findings

1import re

2PATTERN = re.compile(r"[a-z0-9]{3,16}")

3

4def valid_username(name: str) -> bool:

5 return bool(PATTERN.match(name))

Which questions mattered is sealed until you submit. Telling you now would just be handing over the edge cases.