Validation of email text iOS swift

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 Problem:

I'm having the textfield that had an input as email address.I want to validate the text user entered in the textfield is a valid email address.

Solution:

extension String {

    func isValidEmailAddress()-> Bool {

        let regex = try! NSRegularExpression(pattern: "^[A-Z0-9._%+-]+@[A-Z0-9.-]+\\.[A-Z]{2,4}$", options: [.caseInsensitive])

        return regex.firstMatch(in: self, options: NSRegularExpression.MatchingOptions(rawValue: 0), range: NSMakeRange(0, self.count)) != nil

    }

}



Call the above function as like below.


mytextField.text.isValidEmailAddress()

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