What regex would allows text or numbers, or text and number (with no spaces) and a maximum length of 255 characters?
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What regex would allows text or numbers, or text and number (with no spaces) and a maximum length of 255 characters?
You want something like:
^ matches the beginning of the string
[a-zA-Z0-9] matches an alpha numeric character
{,255} means up to 255 of the previous part (alpha numeric character)
$ matches the end of the string