cemolcay

import UIKit
import XCPlayground

// 500-1000, 1-100
func seq(length: Int, sampleRate: Int) -> [Int] {
    var s = [Int]()
    for i in 0..<length {
        s.append((i * sampleRate).nonzeroBitCount)
    }
    return s

cemolcay

func euclid(steps: Int, pulses: Int) -> [Int] {
    let pulses = min(pulses, steps)
    let ones = pulses
    let zeros = steps - pulses

    if zeros == 0 {
        return [Int](repeating: 1, count: steps)
    }

    var s: [[Int]] = [Int].init(repeating: 1, count: ones).map({ [$0] }) + [Int](repeating: 0, count: zeros).map({ [$0] })

cemolcay

import UIKit

var data: [String: Any] = [
  "connection": [
    "wifi": [
      "sx": 1.1,
      "tx": 11
    ],
    "cell": [
      "rx": 10,

cemolcay

find . -name '.DS_Store' -type f -delete

cemolcay

protocol DictionaryStore {
  static var storeFileName: String { get }
  var store: [[String: Any]] { get set }
}

extension DictionaryStore {
  func write() throws {
    let data = try JSONSerialization.data(withJSONObject: store, options: [])
    let document = try FileManager.default.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: false)
    let path = document.appendingPathComponent(Self.storeFileName)

cemolcay

/// Merges right hand side dictionary into left hand side dictionary. Works on nested dictionaries as well.
///
/// - Parameters:
///   - lhs: Dictionary you want to merge someting.
///   - rhs: Merging dictionary.
/// - Returns: Returns merged dictionary.
internal func +<Key, Value> (lhs: [Key: Value], rhs: [Key: Value]) -> [Key: Value] {
  var result = lhs
  rhs.forEach {
    if let dict = $1 as? [Key: Value] {

cemolcay

import UIKit

extension UIViewController {
  var topMostChild: UIViewController? {
    if let tab = self as? UITabBarController {
      return tab.selectedViewController?.topMostChild
    } else if let nav = self as? UINavigationController {
      return nav.topViewController?.topMostChild
    } else if let split = self as? UISplitViewController {
      return split.viewControllers.last?.topMostChild

cemolcay

import Foundation

extension Array {
  /// An array subscript extension that returns the element from the positive or negative circular index.
  public subscript(circular index: Int) -> Element? {
    guard count > 0 else { return nil }
    let mod = index % count
    let offset = index >= 0 ? 0 : count
    let idx = mod == 0 ? 0 : mod + offset
    return self[idx]

cemolcay

var timebaseInfo = mach_timebase_info_data_t()

init() {
  mach_timebase_info(&timebaseInfo)
}

func machAbsoluteToSeconds(machAbsolute: UInt64 = mach_absolute_time()) -> Double {
  let nanos = Double(machAbsolute * UInt64(timebaseInfo.numer)) / Double(timebaseInfo.denom)
  return nanos / 1.0e9;
}

cemolcay

import Foundation

func convert<T: FloatingPoint>(value: T, inRange: ClosedRange<T>, toRange: ClosedRange<T>) -> T {
  let oldRange = inRange.upperBound - inRange.lowerBound
  let newRange = toRange.upperBound - toRange.lowerBound
  return (((value - inRange.lowerBound) * newRange) / oldRange) + toRange.lowerBound
}

func convert<T: SignedInteger>(value: T, inRange: ClosedRange<T>, toRange: ClosedRange<T>) -> T {
  let oldRange = inRange.upperBound - inRange.lowerBound