/Shell/Bash/How to get the digit count of number swift

How to get the digit count of number swift

public extension Int {
/// returns number of digits in Int number
public var digitCount: Int {
    get {
        return numberOfDigits(in: self)
    }
}
/// returns number of useful digits in Int number
public var usefulDigitCount: Int {
    get {
        var count = 0
        for digitOrder in 0..<self.digitCount {
            /// get each order digit from self
            let digit = self % (Int(truncating: pow(10, digitOrder + 1) as NSDecimalNumber))
                / Int(truncating: pow(10, digitOrder) as NSDecimalNumber)
            if isUseful(digit) { count += 1 }
        }
        return count
    }
}
// private recursive method for counting digits
private func numberOfDigits(in number: Int) -> Int {
    if number < 10 && number >= 0 || number > -10 && number < 0 {
        return 1
    } else {
        return 1 + numberOfDigits(in: number/10)
    }
}
// returns true if digit is useful in respect to self
private func isUseful(_ digit: Int) -> Bool {
    return (digit != 0) && (self % digit == 0)
}

Source: stackoverflow.com

Similar codes

1 vote228 views1 answer
Restart pulseaudio ubuntu
Shell/Bash
0 vote177 views1 answer
Adminer installieren welcher ordner
Shell/Bash
0 vote207 views1 answer
Bash start two processes at the same time
Shell/Bash
0 vote156 views1 answer
Add bash as defult on arch
Shell/Bash
2 votes189 views2 answers
Unknown shorthand flag: 'd' in -daemon+docker stop
Shell/Bash
-1 vote180 views2 answers
Count specific number in array powershell
Shell/Bash
3 votes178 views1 answer
Telnet install on mac
Shell/Bash
0 vote193 views2 answers
Git remove folder from cache
Shell/Bash
0 vote202 views1 answer
Install latest golang on ubuntu
Shell/Bash
0 vote224 views1 answer
ModuleNotFoundError: No module named 'detectron2'
Shell/Bash