amomchilov

#!/usr/bin/ruby

def disrespect_privacy(symbol, &block)   # access private methods in a block
  raise ArgumentError, 'Block must be specified' unless block_given?

  block_binding = block.binding
  target_object = block_binding.local_variable_get(symbol)
  block_binding.local_variable_set(symbol, PrivacyViolator.new(target_object))

  yield

amomchilov

import UIKit
import PlaygroundSupport

class ArcView: UIView {
	private var strokeWidth: CGFloat {
		return CGFloat(min(self.bounds.width, self.bounds.height) * 0.25)
	}
	
	override open func draw(_ rect: CGRect) {
		super.draw(rect)

amomchilov

import Cocoa

let path = "/Users/You/Pick/Any/Random/File/On/Your/System.txt"
let destination = URL(fileURLWithPath: path)

let progress: Progress = {
	let p = Progress(parent: nil, userInfo: [
		.fileOperationKindKey: Progress.FileOperationKind.downloading,
		.fileURLKey: destination,
	])

amomchilov

import Cocoa

let path = "/Users/You/Pick/Any/Random/File/On/Your/System.txt"
let destination = URL(fileURLWithPath: path)

let progress: Progress = {
	let p = Progress(parent: nil, userInfo: [
		.fileOperationKindKey: Progress.FileOperationKind.downloading,
		.fileURLKey: destination,
	])

amomchilov

extension String {
	func mostFrequentWord() -> String? {
		return Dictionary(
			grouping: self
				.trimmingCharacters(in: CharacterSet.letters)
				.lowercased()
				.components(separatedBy: CharacterSet.whitespacesAndNewlines),
			by: { $0 }
		)
		.max(by:) { $0.value.count < $1.value.count }?.key // `key` is word, `value` is array of word, repeated `count` times

amomchilov

// 1. Don't compare to `nil`, only to force unwrap later. Just use conditional binding:

func allOfferCards() -> [OfferCard]{
    guard let dataSource = dataSource else { return [] }

    let numberOfCards = self.dataSource.kolodaNumberOfCards(self)

    var offerCards = [OfferCard]()

    for i in 0..<numberOfCards {

amomchilov

let image = #imageLiteral(resourceName: "Arrow.gif")

let imageRep = image.representations.first! as! NSBitmapImageRep
let numFrames = imageRep.value(forProperty: NSImageFrameCount) as! Int
let numLoops = imageRep.value(forProperty: NSImageCurrentFrameDuration) as! Float

var cgImages = [CGImage]()
var nsImages = [NSImage]()
var size = NSSize()
for frame in 0..<numFrames {