Posts by Paulo Merson • 111 points

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  A: Regular expression to validate a field that accepts CPF or CNPJ

  For a simple input (allows typing only CPF or CNPJ): ^(\d{2}\.?\d{3}\.?\d{3}\/?\d{4}-?\d{2}|\d{3}\.?\d{3}\.?\d{3}-?\d{2})$ For an input or text box where the CPF or CNPJ may appear at the beginning,…

  regex

  answered 5 years, 8 months ago Paulo Merson 111