jk’s gists

jk / desired_refactoring.swift

Created December 5, 2015 10:24

Desired refactoring

	class MyViewController : UIViewController {
	func refactorThis() {
	if let navigationController = navigationController,
	let topViewController = navigatonController.topViewController,
	let someProperty = topViewController.someproperty {

	someProperty = "new value"
	}
	}

jk / response_object.swift

Created July 31, 2015 14:25

Response Object and Collection Serializable

	@objc public protocol ResponseObjectSerializable {
	init(response: NSHTTPURLResponse, representation: AnyObject)
	}

	extension Alamofire.Request {
	public func responseObject<T:ResponseObjectSerializable>(completionHandler: (NSURLRequest, NSHTTPURLResponse?, T?, NSError?) -> Void) -> Self {
	let serializer: Serializer = {
	(request, response, data) in

	let JSONSerializer = Request.JSONResponseSerializer(options: .AllowFragments)

jk / image_response_serializer.swift

Created July 31, 2015 14:22

Image Response Serializer for Alamofire

	extension Alamofire.Request {
	class func imageResponseSerializer() -> Serializer {
	return { request, response, data in
	if data == nil {
	return (nil, nil)
	}

	let image = UIImage(data: data!, scale: UIScreen.mainScreen().scale)

	return (image, nil)

jk / trailing_closures.swift

Created July 30, 2015 09:21

Closures and trailing closures

	let myArray = [1, 2, 3, 4, 5]

	let longMap = myArray.map({ (number) in
	return number * 10
	})
	let convienceMap = myArray.map { number in
	return number * 10
	}
	let shortMap = myArray.map { $0 * 10 }

jk / load_brew_completions.sh

Created July 30, 2015 08:34

Source all homebrew bash completions

	if [ -d `brew --prefix`/etc/bash_completion.d ]; then
	COMPLETIONS=`brew --prefix`/etc/bash_completion.d/*
	for COMPLETION in $COMPLETIONS
	do
	source $COMPLETION
	done
	fi

jk / singleton.swift

Created July 21, 2015 09:26

How to write a correct singleton in Swift. Source: http://krakendev.io/blog/the-right-way-to-write-a-singleton

	class TheOneAndOnlyKraken {
	static let sharedInstance = TheOneAndOnlyKraken()
	}

jk / extension.Dictionary.swift

Created July 13, 2015 13:26

Merge dictionaries in place as described in http://ericasadun.com/2015/07/08/swift-merging-dictionaries/

	extension Dictionary {
	mutating func unionInPlace(dictionary: Dictionary<Key, Value>) {
	for (key, value) in dictionary {
	self[key] = value
	}
	}
	mutating func unionInPlace<S: SequenceType where S.Generator.Element == (Key, Value)>(sequence: S) {
	for (key, value) in sequence {
	self[key] = value
	}

jk / php54-uopz.rb

Created March 8, 2015 10:42

User Operations for Zend — https://github.com/krakjoe/uopz

	require File.expand_path("../../Abstract/abstract-php-extension", __FILE__)

	class Php54Uopz < AbstractPhp54Extension
	init
	homepage 'http://php.net/manual/en/book.uopz.php'
	url 'https://github.com/krakjoe/uopz/archive/v2.0.7.tar.gz'
	sha1 '9b49b52954046d7d4b3d41a8ca8f44f724795f8a'
	head 'https://github.com/krakjoe/uopz.git'
	version '2.0.7'

jk / clean_vendor_directory.sh

Created February 12, 2015 06:40

Within composer's vendor directory MUST NOT contain any modification. This script cleans it up for git repos.

	#!/bin/sh
	GIT=`which git`
	GIT_DIRS=`find vendor -name .git -type d`

	for GIT_DIR in $GIT_DIRS; do
	if [ -d "${GIT_DIR}" ]; then
	WORK_TREE=`dirname ${GIT_DIR}`
	${GIT} --git-dir=${GIT_DIR} --work-tree=${WORK_TREE} clean -f
	fi
	done

jk / 01_non_stable_sort.php

Last active August 29, 2015 14:14

Jens Kohl jk