Textfield is even empty but not considering as empty in Swift

Question

I have some multiple textfields, And If all the fields are filled then only I have to call some method else I have to throw alert.

But, even textfields are empty, It is executing condition as false.

if genderTextField.text?.isEmpty == true && weightTextField.text?.isEmpty == true && heightTextField.text?.isEmpty == true {
                self.showAlert(withTitle:"Title", withMessage: "Fill all the fields")

} else {
 //call some function
}

But, If I print textfields text

po genderTextField.text
▿ Optional<String>
  - some : ""

Any suggestions?

You should use OR, if you want to check if all the TextFields are filled — rbaldwin
– rbaldwin, Commented May 12, 2020 at 10:29
Your logic is wrong for a start. - you want || (or) not and - you want the alert if any field is empty. You can also omit the == true since isEmpty is a Boolean. I would suggest that you handle nil properly via a nil coalescing operator if (genderTextField.text ?? "").isEmpty ... — Paulw11
– Paulw11, Commented May 12, 2020 at 10:33

rbaldwin · Accepted Answer · 2020-05-12 10:40:56Z

2

Swift 5.2

A more elegant way to do it would be to create an extension on UITextField

extension UITextField {
    var isEmpty: Bool {
        if let text = self.text, !text.isEmpty {
            return false
        } else {
            return true
        }
    }
}

And then you check like this:

if genderTextField.isEmpty || weightTextField.isEmpty || heightTextField.isEmpty {
    showAlert()
} else {
    // do something else
}

answered May 12, 2020 at 10:40

rbaldwin

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