eMdOS

protocol NibLoadableView: class {
    static var nibName: String { get }
}

extension NibLoadableView where Self: UIView {
    static var nibName: String {
        return String(describing: self)
    }
}

eMdOS

import Foundation

public enum APIError: Error {
    case service(message: String)
}

extension APIError: CustomStringConvertible {
    public var description: String {
        switch self {
        case .service(let message):

eMdOS

public enum Regex: String {
    case email = "^[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,}$"
}

extension Regex: RegexProvider {
    public var regex: String {
        return rawValue
    }
    
    static func validate(expression: String, forRegex regex: Regex) -> Bool {

eMdOS

Perl and PHP Regular Expressions

PHP regexes are based on the PCRE (Perl-Compatible Regular Expressions), so any regexp that works for one should be compatible with the other or any other language that makes use of the PCRE format. Here are some commonly needed regular expressions for both PHP and Perl. Each regex will be in string format and will include delimiters.
All Major Credit Cards

This regular expression will validate all major credit cards: American Express (Amex), Discover, Mastercard, and Visa.

    //All major credit cards regex
    '/^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|6011[0-9]{12}|622((12[6-9]|1[3-9][0-9])|([2-8][0-9][0-9])|(9(([0-1][0-9])|(2[0-5]))))[0-9]{10}|64[4-9][0-9]{13}|65[0-9]{14}|3(?:0[0-5]|[68][0-9])[0-9]{11}|3[47][0-9]{13})*$/'

eMdOS

extension Encodable {
    func encode(with encoder: JSONEncoder = JSONEncoder()) throws -> Data {
        return try encoder.encode(self)
    }
}

extension Decodable {
    static func decode(with decoder: JSONDecoder = JSONDecoder(), from data: Data) throws -> Self {
        return try decoder.decode(Self.self, from: data)
    }

eMdOS

SSH Keys

Generating a new SSH key

1. Create a ssh key:

   ssh-keygen -t rsa -b 4096 -C "<email>"

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Playground

Async execution

• At the imports section:

   import PlaygroundSupport

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macOS

Change where screenshots save

1. Creating a folder for screenshots (~/Pictures/Screenshots/):

   mkdir ~/Pictures/Screenshots/

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Xcode (code comments warnings)

1. Create the scripts folder at ./:

   mkdir scripts

2. Give it the right permissions for execution:

eMdOS

@echo off
title Flash Memory 
color 1E
@echo ----------------------------------------------
@echo ------------- Memory Flash Fixer -------------
@echo ----------------------------------------------
@echo Changing Folder Attributes...
Attrib /d /s -r -h -s *.* 
@echo ----------------------------------------------
@echo Deleting Links