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    All words starting with the letter "n" and ending with "g", case insensitive
    >> /^nw*g$/i
This is not right. That should be a "\w" instead of "w".


Same with the last one, it should be \d instead of d. Seems like an escape character issue.


It's otherwise wrong, too. It shouldn't have ^ or $, and \w matches non word characters. It should be /n[a-z]*g/gi




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