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Editorial Team
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Asked: 2026-06-10T20:18:26+00:00

I’m using jQuery’s validation plugin to validate a form. I have a field which

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I’m using jQuery’s validation plugin to validate a form.
I have a field which should only contain letters or numbers. I have tried the following regex but it’s still allowing characters such as ‘ ; :

[a-zA-Z 0-9]$

What am I doing wrong?

Thanks in advance

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1 Answer

  1. Editorial Team

    Try this:

    ^[a-zA-Z 0-9]*$

    If this is a required field, then change asterisk to plus:-

    ^[a-zA-Z 0-9]+$
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