czars

//  Created by Vasily Ulianov on 09.02.17, updated in 2019.
//  License: MIT

import Foundation

/// Subclass of `Operation` that adds support of asynchronous operations.
/// 1. Call `super.main()` when override `main` method.
/// 2. When operation is finished or cancelled set `state = .finished` or `finish()`
open class AsynchronousOperation: Operation {
    public override var isAsynchronous: Bool {

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extension OperationQueue {
    
    /// Creates a debounced function that delays invoking `action` until after `delay` seconds have elapsed since the last time the debounced function was invoked.
    ///
    /// - Parameters:
    ///   - delay: The number of seconds to delay.
    ///   - underlyingQueue: An optional background queue to run the function
    ///   - action: The function to debounce.
    /// - Returns: Returns the new debounced function.
    open class func debounce(delay: TimeInterval, underlyingQueue: DispatchQueue? = nil, action: @escaping () -> Void) -> (() -> Void) {

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//
//  FlowControllerView.swift
//  NavigationFlow
//
//  Created by Nick McConnell on 6/7/20.
//  Copyright © 2020 Nick McConnell. All rights reserved.
//

import SwiftUI

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extension Array {
    func chunked(into size: Int) -> [[Element]] {
        return stride(from: 0, to: count, by: size).map {
            Array(self[$0 ..< Swift.min($0 + size, count)])
        }
    }
}

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---

Note: this is a summary of different git workflows putting together to a small git bible. references are in between the text

---

How to Branch

try to keep your hacking out of the master and create feature branches. the [feature-branch workflow][4] is a good median between noobs (i have no idea how to branch) and git veterans (let's do some rocket sience with git branches!). everybody get the idea!

Basic usage examples

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import Foundation

// number of elements
let n = Int(readLine()!)!

// read array and map the elements to integer
let arr = readLine()!.components(separatedBy: " ").map{ Int($0)! }
//edit if any other requirement

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import Foundation

var token: dispatch_once_t = 0
func test() {
    dispatch_once(&token) {
        println("This is printed only on the first call to test()")
    }
    println("This is printed for each call to test()")
}

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var states: Variable<[String]> = Variable([])
    states.asObservable()
    .filter({ (array) -> Bool in
      var valid: Bool = true
      for x in array {
        valid = x.characters.count > 3
      }
      print(valid)
      return valid
    }).subscribe(onNext: { _ in

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private class func testSignalOne() -> RACSignal {
    return RACSignal.createSignal { (subscriber) -> RACDisposable! in
      print("test for true")
      subscriber.sendNext(true)
      subscriber.sendCompleted()
      return RACDisposable {
//        task.cancel()
      }
    }
  }

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let myString = String(format: NSLocalizedString("account.by_user", comment: "any comment"), "Peter","Larry")