Validate an email address : Utility Regexps « Development « Ruby

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Ruby » Development » Utility Regexps   Validate an email address def probably_valid?(email)  valid = '[A-Za-z\d.+-]+' # Commonly encountered email address characters  (email =~ /#{valid}@#{valid}\.#{valid}/) == 0 end #These give the correct result. probably_valid? 'joe@example.com'                # => true probably_valid? 'joe@examplecom'                 # => false   Related examples in the same category 1.  Validate an email address with Resolv::DNS 2.  Checking a Credit Card Checksum

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