bleft

extension Data {
    var md5 : String {
        var digest = [UInt8](repeating: 0, count: Int(CC_MD5_DIGEST_LENGTH))
        _ =  self.withUnsafeBytes { bytes in
            CC_MD5(bytes, CC_LONG(self.count), &digest)
        }
        var digestHex = ""
        for index in 0..<Int(CC_MD5_DIGEST_LENGTH) {
            digestHex += String(format: "%02x", digest[index])
        }

bleft

version: "3.8"

services:
  db:
    image: mysql:latest
    volumes:
      - ./db/data:/var/lib/mysql
    ports:
      - "3306:3306"
    restart: always

bleft

// with the help of: https://gist.github.com/phpmaple/9458264

extension UIButton {
    func centerImageAndButton(_ gap: CGFloat, imageOnTop: Bool) {
        
        guard let imageView = self.imageView,
            let titleLabel = self.titleLabel else { return }
        
        let sign: CGFloat = imageOnTop ? 1 : -1;
        let imageSize = imageView.frame.size;

bleft

// sepcifiy your errors
enum MyCustomError : Error {
    case customError
    case missingProperty
    
    var localizedDescription: String {
        switch self {
        case .urlCouldNotBeCreated:
            return NSLocalizedString("MyCustomErrorCcustomError", value: "a localized error message", comment: "")
        case .missingProperty:

bleft

SELECT DATE_FORMAT(FROM_UNIXTIME(`date`), '%e %b %Y %H:%m:%s') AS created, temp, humid FROM `table_name` ORDER BY id DESC LIMIT 1;

bleft

Software for new Macs

• 1Password
• Xcode
• bear
• homebrew
• intelliJ IDEA
• iXLIFF
• Tweetbot
• TextMate
• Gimp

bleft

extension String {
    var isValidEmail: Bool {
        let emailRegEx = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,64}"
        let emailTest = NSPredicate(format:"SELF MATCHES %@", emailRegEx)
        return emailTest.evaluate(with: self)
    }
}

bleft

extension UIImage {
    /**
     returns an UIImage with the given height
     **/
    func resizedImage(newHeight: CGFloat) -> UIImage {
        let scale = newHeight / self.size.height
        let newWidth = self.size.width * scale
        UIGraphicsBeginImageContext(CGSize(width: newWidth, height: newHeight))
        self.draw(in: CGRect(x: 0, y: 0, width: newWidth, height: newHeight))
        let newImage = UIGraphicsGetImageFromCurrentImageContext()

bleft

class MyView: UIView {
  
  private let gradient = CAGradientLayer()

  override func draw(_ rect: CGRect) {
        super.draw(rect)
        
        gradient.colors = [UIColor.red.cgColor, UIColor.blue.cgColor] // beliebig viele Farben für den Verlauf einstellen
        gradient.startPoint = CGPoint(x: 0, y: 0) // über start und endPoint kann die Richtung des Verlaufes verändert werden.
        gradient.endPoint = CGPoint(x: 0, y: 1)

bleft

wget -qO- http://checkip.dyndns.org | sed -e 's/^.*s: //' -e 's_</b.*$__'