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// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

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// Swift Standard Librray - String
// Keith Harrison http://useyourloaf.com

// Import Foundation if you want to bridge to NSString
import Foundation

// ====
// Initializing a String
// ====

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import CoreData

protocol Fetchable
{
    associatedtype FetchableType: NSManagedObject = Self
    
    static func entityName() -> String
    static func objectsInContext(_ context: NSManagedObjectContext, predicate: NSPredicate?, sortedBy: String?, ascending: Bool) throws -> [FetchableType]
    static func singleObjectInContext(_ context: NSManagedObjectContext, predicate: NSPredicate?, sortedBy: String?, ascending: Bool) throws -> FetchableType?
    static func objectCountInContext(_ context: NSManagedObjectContext, predicate: NSPredicate?) -> Int

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Asynchronous Error Handling in Swift 2.0

As Swift 1.0 did not include support for exceptions, a common error handling pattern was to use a Result enum that either took on a value on success, or an error on failure. In a way, this was superior to using exceptions, since being a instantiable type, Results could be passed around freely, enabling asynchronous code to use the same error handling mechanisim as synchronous code. Using Swift's robust support for custom operators, this also enabled Railway Oriented Programming for more functional oriented programers.

Swift 2.0 introduces throwable errors, which are similar to exceptions. However, like exceptions, thrown errors

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import CoreGraphics
import SpriteKit

extension SKAction {

    static func transitionStrokeColor(from: SKColor, to: SKColor, duration: TimeInterval) -> SKAction {
        return transitionColor(from: from, to: to, duration: duration, fill: false)
    }

    static func transitionFillColor(from: SKColor, to: SKColor, duration: TimeInterval) -> SKAction {