acrookston

import UIKit

extension UIColor {
    static func rgba(_ r: CGFloat, _ g: CGFloat, _ b: CGFloat, _ a: CGFloat) -> UIColor {
        return UIColor(red: r / 255.0, green: g / 255.0, blue: b / 255.0, alpha: a)
    }

    static var lightBackground: UIColor { return .rgba(246, 246, 246, 1) }
    static var text: UIColor { return .rgba(51, 51, 51, 1) }
}

acrookston

import Foundation

// Given some sorted dates find out if the set contains 5 dates within 30 days of eachother.
// I.e. Given a user's login dates, find out if they were logged in 5 or more times in 30 days.

extension Date {
    static func parse(_ str: String) -> Date {
        let dateFormatter = DateFormatter()
        dateFormatter.dateFormat = "yyyy-MM-dd"
        return dateFormatter.date(from: str)!

acrookston

# Question: https://www.dropbox.com/s/4dlhs6x69cmj8uv/Screenshot%202017-04-29%2012.21.05.png?dl=0
# Time limit: 30min
# Finished in 28min
# It should be possible to load the tree in one pass. I just didn't have time to rewrite that part.

require "rubygems"
require "json"
locations = JSON.parse(STDIN.read)

class Node

acrookston

import Foundation

let values: [Character: Int] = [
    "I" : 1,
    "V" : 5,
    "X" : 10,
    "L" : 50,
    "C" : 100,
    "D" : 500,
    "M" : 1000

acrookston

#!/bin/sh

if [ -z "$1" ]
  then
    echo "Usage: git-purge [branch]"
    exit
fi

if [ "master" == "$1" ]
  then

acrookston

#!/usr/bin/env puma

app_path = '/var/www/YOUR_APP_NAME/current'
directory app_path
environment 'production'
daemonize true
pidfile "#{app_path}/tmp/pids/puma.pid"
state_path "#{app_path}/tmp/pids/puma.state"
stdout_redirect "#{app_path}/log/puma_error.log", "#{app_path}/log/puma_access.log", true
threads 0,16

acrookston

class CallbackViewModel {
    typealias DidUpdateCallback = ((Void) -> Void)
    private var didUpdateCallbacks = [DidUpdateCallback?]()

    // Have to remember to use `[weak self] in` in your callback!
    func addObserver(_ callback: @escaping DidUpdateCallback) {
        didUpdateCallbacks.append(callback)
    }

acrookston

// Results:
// 0.40788197517395  - IteratedEnum (it's slow due to EnumCollection)
// 0.282593011856079 - StaticIteratedEnum 
// 0.152174055576324 - SwitchedEnum
// 0.159240961074829 - OtherSwitchedEnum

import Foundation

// MARK: - Benchmark - gotta know how fast it is!

acrookston

/*******************************************************************************
 * The MIT License (MIT)
 *
 * Copyright (c) 2017 Jean-David Gadina - www.xs-labs.com
 * Original: https://github.com/macmade/user-defaults/blob/master/swift/Preferences.swift
 *
 * Copyright (c) 2017 Andrew Crookston - andrewcrookston.com
 * Contributor: https://gist.github.com/acrookston/f973137b9adbd9bff3589ca2cd1d1cb8
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy

acrookston

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