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How to validate if input in input field has alphanumeric characters only using express-validator ? - GeeksforGeeks
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Resolving the "The value 'xyzportal' can only contain alphanumeric characters. A hyphen may be used in the middle of the subdomain; but, not at the beginning or end" Error – SmartVault
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How to validate if input in input field has alphanumeric characters only using express-validator ? - GeeksforGeeks
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labels - How to clearly state to the User what characters are valid - User Experience Stack Exchange
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