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Editorial Team
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Editorial Team
Asked: May 26, 20262026-05-26T12:07:29+00:00 2026-05-26T12:07:29+00:00

I am trying to validate that the given string contains contains only letters, numbers,

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I am trying to validate that the given string contains contains only letters, numbers, spaces, and characters from a set of symbols (!-?():&,;+). Here is what I have so far:

/^[a-zA-Z0-9 !-?\(\):&,;\+]+$/

Now this works somewhat but it accepts other characters as well. For example, strings containing * or # validate. I thought that the ^ at the beginning of the expression and the $ at the end meant that it would match the whole string. What am I doing wrong?

Thanks.

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  1. Editorial Team
    Editorial Team
    2026-05-26T12:07:30+00:00Added an answer on May 26, 2026 at 12:07 pm
    /^[a-zA-Z0-9 !-?\(\):&,;\+]+$/
    

    The – is not nice where you placed it! If you want to place – inside a character class be sure to either place it first or last e.g.

    /^[a-zA-Z0-9 !?\(\):&,;\+-]+$/
    

    Otherwise it will take the range of ! until ? whatever this range maybe…Depends on your regex machine.

    Finally special characters are not special inside character classes. So no need to escape most of them :

    /^[a-zA-Z0-9 !?():&,;+-]+$/
    
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