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Esoteric Questions During Front-end Interview: Valid?

Next time you have a webdev interview and the interviewer asks you an obscure technical question, show them the following very simple HTML example:

<!DOCTYPE html>
        <meta charset="utf-8">

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Which warning(s) and/or error(s) (if any) will the W3C Validator display for this HTML sample?

Even a lot of very experienced front-end devs probably don't know the answer.

This just goes to show you that technical interviews which ask esoteric questions aren't valid.

No matter how experienced you are, I can always ask a question about a specific detail that you don't know.

Did You Know the Answer?

Also, did you know the answer to this question?

HINT - The W3C Validator returns :
1 warning and 1 error. Do you know what they are?

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