how can I remove special character from phone number in swift? [duplicate]

问题

This question already has answers here:

remove \\u{e2} characters from string (3 answers)

Closed 10 months ago.

When I copy number phone from phone app I get results like this \u{e2}05xxxxxx49\u{e2}

I need to remove this character \u{e2} from the left and right of the number to get a result like this 05xxxxxx49

var str = number
str = str!.replacingOccurrences(of: "\u{e2}", with: "")
print(str!)

回答1:

thanks for all finally I know how is it 👇👇👇👇

    var number = self.myTFForNumber.text

    self.myTFForNumber.text = ""
    let onlyDigits: CharacterSet = CharacterSet.decimalDigits.inverted
    let greeting = number!
    number = ""
    for aa in 0..<greeting.count
    {

        let index = greeting.index(greeting.startIndex, offsetBy: aa)

        let bb = String(describing: greeting[index])

        if bb.rangeOfCharacter(from: onlyDigits) == nil {

            number = "\(String(describing: number!))\(greeting[index])"

        }

    }

    self.myTFForNumber.text = number!

来源：https://stackoverflow.com/questions/54640572/how-can-i-remove-special-character-from-phone-number-in-swift