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Editorial Team
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Asked: 2026-05-13T19:17:40+00:00

I need to compare a textarea to make sure: It’s not ONLY SPACES and

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I need to compare a textarea to make sure:

  1. It’s not ONLY SPACES and not ONLY RETURNS(new lines) and NOT ONLY a combination of these two.
  2. However, if there are more than 3 characters OR numbers, then it is okay.
  3. Not more than say 2000 characters.

Imagine a textarea, I don’t want the form to submit if the user have pressed enter (new line) 5 times, and I don’t want it to submit with only spaces. There must be atleast 3 characters or numbers.

Thanks

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1 Answer

  1. Editorial Team
    /^\s*(\w[^\w]*){3}.*$/

    First, allow leading whitespace. Then match a letter/number followed by 0 or more non-letter/numbers, 3 times. Then also match any other characters found.

    Will only match if there are at least 3 letter/number characters; they can have other characters interspersed between them.

    As far as a max character limit goes, it’d be far simpler to just do this with a check on .length rather than trying to build it into the regex.

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