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Code RoomEmail validation plus sign rejection
EasyPrep Room Coding #5002

Email validation plus sign rejection

Vibe & agenticAlgorithms & data structuresEntry–Mid~12 min

You asked an AI assistant to write a JavaScript function that validates an email field and returns true/false. It gave you something that works, but it rejects valid addresses with a '+' in them (like 'alex+test@gmail.com'), which your signup flow needs to accept. Instead of vaguely saying "that's wrong, fix it," write the follow-up prompt you'd send to re-steer it effectively.

Implement
is_valid_email(address: str) → bool
Examples
in["alex+test@gmail.com"]outtrue
in["no-at-sign.com"]outfalse
What a strong answer looks like

Treat the AI’s output as a draft to verify, not an answer to trust. Name the specific flaw and the input that triggers it, say how you’d catch it (tests, edge cases, reading critically), and how you’d re-prompt or decompose to get it right.

0:00 of about 12 min

Vibe & agentic: describe the solution in plain language (or narrate it) and the coach grades your approach.

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