/Swift/On edit input field provide default value if textfield get empty swift

On edit input field provide default value if textfield get empty swift

func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
    guard let textFieldString = textField.text, let range = Range(range, in: textFieldString) else {
        return false
    }
    let newString = textFieldString.replacingCharacters(in: range, with: string)
    if newString.isEmpty {
        textField.text = "0"
        return false
    } else if textField.text == "0" {
        textField.text = string
        return false
    }
    return true
}

Source: stackoverflow.com

Similar codes

0 vote156 views1 answer
How to remove item from list swift
Swift
0 vote146 views1 answer
Xcode button center text
Swift
0 vote150 views1 answer
Remove child from scene swift
Swift
1 vote101 views1 answer
Cordova-plugin-file-transfer/CDVFileTransfer.m:107:49:%20No%20known%20instance%20method%20for%20selector%20'userAgent'
Swift
1 vote158 views1 answer
Swift compare string to button title
Swift
3 votes243 views1 answer
Swift how to sort array
Swift
0 vote151 views2 answers
Swift go back to previous view controller
Swift
1 vote149 views1 answer
Swift thread.sleep
Swift
0 vote153 views4 answers
Swift push view controller programmatically
Swift
1 vote148 views1 answer
White or light ASAuthorizationAppleIDButton “Sign in with Apple” button - Swift
Swift