lorentey

extension Array where Element: Comparable {
  func clamp(from lowerBound: Element, to upperBound: Element) -> Array {
    return self.map { min(upperBound, max(lowerBound, $0)) }
  }
}

let clamped = [0, 1, 2, 3, 4, 5, 6].clamp(from: 2, to: 4))

cbess

//
//  AppNotify.swift
//
//  Created by Christopher Bess on 6/30/15.
//  MIT License
//

import Foundation

/// Represents the app notification.

oleganza

Async semantics proposal for Swift

Modern Cocoa development involves a lot of asynchronous programming using blocks and NSOperations. A lot of APIs are exposing blocks and they are more natural to write a lot of logic, so we'll only focus on block-based APIs.

Block-based APIs are hard to use when number of operations grows and dependencies between them become more complicated. In this paper I introduce asynchronous semantics and Promise type to Swift language (borrowing ideas from design of throw-try-catch and optionals). Functions can opt-in to become async, programmer can compose complex logic involving asynchronous operations while compiler produces necessary closures to implement that logic. This proposal does not propose new runtime model, nor "actors" or "coroutines".

Table of contents

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

depth42

#!/bin/bash
# Shell script to be executed on a Mavericks Server runing Xcode Server using sudo
BOTRUN_DATA=/Library/Server/Xcode/Data/BotRuns
LATEST_RUN=`ls -tr $BOTRUN_DATA | grep BotRun- | tail -n1`
tail -f ${BOTRUN_DATA}/${LATEST_RUN}/output/build.log

DiegoSalazar

// Takes a credit card string value and returns true on valid number
function valid_credit_card(value) {
  // Accept only digits, dashes or spaces
	if (/[^0-9-\s]+/.test(value)) return false;

	// The Luhn Algorithm. It's so pretty.
	let nCheck = 0, bEven = false;
	value = value.replace(/\D/g, "");

	for (var n = value.length - 1; n >= 0; n--) {