/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

0 vote170 views1 answer
Change permission to connect your SSH instance mac
Shell/Bash
0 vote154 views1 answer
How to upgrader vscodium
Shell/Bash
28 votes136 views4 answers
Install typescript
Shell/Bash
0 vote198 views1 answer
Keep CMD open after BAT file executes
Shell/Bash
5 votes145 views2 answers
Run jupyterlab
Shell/Bash
33 votes151 views6 answers
Git config list
Shell/Bash
0 vote147 views1 answer
Copy remote ssh key mac
Shell/Bash
0 vote156 views1 answer
Check if any changes are stashed
Shell/Bash
0 vote158 views1 answer
Path/to/sdkmanager --install "cmdline-tools;latest"
Shell/Bash
0 vote158 views1 answer
Elementary os install window cut off
Shell/Bash