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@andymatuschak
andymatuschak / CollectionViewDataSource.swift
Last active February 12, 2021 09:44
Type-safe value-oriented collection view data source
//
// CollectionViewDataSource.swift
// Khan Academy
//
// Created by Andy Matuschak on 10/14/14.
// Copyright (c) 2014 Khan Academy. All rights reserved.
//
import UIKit
#
# Set the build number to the current git commit count.
# If we're using the Dev scheme, then we'll suffix the build
# number with the current branch name, to make collisions
# far less likely across feature branches.
# Based on: http://w3facility.info/question/how-do-i-force-xcode-to-rebuild-the-info-plist-file-in-my-project-every-time-i-build-the-project/
#
git=`sh /etc/profile; which git`
appBuild=`"$git" rev-list --all |wc -l`
if [ $CONFIGURATION = "Debug" ]; then
@mattt
mattt / regex.swift
Created August 11, 2014 18:08
Creating a regular expression object from a String literal
class Regex {
let pattern: String
let options: NSRegularExpressionOptions!
private var matcher: NSRegularExpression {
return NSRegularExpression(pattern: self.pattern, options: nil, error: nil)
}
required init(pattern: String, options: NSRegularExpressionOptions = nil) {
self.pattern = pattern
@austinzheng
austinzheng / main.swift
Last active April 30, 2026 00:10
Anonymous class experiment in Swift
import Foundation
protocol SomeDelegateProtocol : class {
func firstFunc() -> String
func secondFunc() -> Bool
func thirdFunc() -> Self
}
class MyClass {
weak var delegate : SomeDelegateProtocol?
@jpsim
jpsim / JAZMusician.h
Created July 7, 2014 09:25
SourceKit Playground
//
// JAZMusician.h
// JazzyApp
//
#import <Foundation/Foundation.h>
/**
JAZMusician models, you guessed it... Jazz Musicians!
From Ellington to Marsalis, this class has you covered.
@tsiege
tsiege / The Technical Interview Cheat Sheet.md
Last active October 4, 2026 20:40
This is my technical interview cheat sheet. Feel free to fork it or do whatever you want with it. PLEASE let me know if there are any errors or if anything crucial is missing. I will add more links soon.

ANNOUNCEMENT

I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!






\

@d-ronnqvist
d-ronnqvist / Thoughts on removedOnCompletion in SparkRecordingCircle.md
Last active May 16, 2020 02:51
What I think is wrong with the Spark Recording Circle code and why

There was [a tweet][tweetSoto] a couple of days ago that resulted in a discussion/question about what it wrong with the usage of removedOnCompletion = NO in the [SparkRecordingCircle code][code] for that [Subjective-C post][post].

We all kept saying that the explanation doesn't fit in a tweet, so here is my rough explanation about the issues.

But, let me first say that I think that the Subjective-C articles are reallt cool and useful to learn from. This is trying to reason about the general usage of removedOnCompletion = NO, using that code as an example, since that was what was discussed on twitter.


The root problem, as [Nacho Soto pointed out][rootProblem], is that removedOnCompletion = NO in combination with fillMode = kCAFillModeForwards is almost always used when you are not updating the model layer. This means that after the animation has finished, what you see on screen is not reflected in the property of the layer. The biggest issue that this can cause is that all the

@neonichu
neonichu / update_xcode_plugins
Last active September 18, 2019 14:09
Update DVTPlugInCompatibilityUUIDs for installed plugins from Xcode 5.1 beta to final
#!/bin/sh
#ID='A16FF353-8441-459E-A50C-B071F53F51B7' # Xcode 6.2
ID='992275C1-432A-4CF7-B659-D84ED6D42D3F' # Xcode 6.3
PLIST_BUDDY=/usr/libexec/PlistBuddy
function add_compatibility() {
"$PLIST_BUDDY" -c "Add DVTPlugInCompatibilityUUIDs:10 string $2" \
"$1/Contents/Info.plist"
@steipete
steipete / Macros.h
Last active October 30, 2025 15:55
Declare on your main init that all other init methods should call. It's a nice additional semantic warning. Works with Xcode 5.1 and above. Not tested with earlier variants, but should just be ignored. A reference to this macro shortly appeared in https://developer.apple.com/library/ios/releasenotes/ObjectiveC/ModernizationObjC/AdoptingModernObj…
#ifndef NS_DESIGNATED_INITIALIZER
#if __has_attribute(objc_designated_initializer)
#define NS_DESIGNATED_INITIALIZER __attribute((objc_designated_initializer))
#else
#define NS_DESIGNATED_INITIALIZER
#endif
#endif
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns:d="http://www.apple.com/DTDs/DictionaryService-1.0.rng">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body>
<d:entry id="m_en_gb0035330" d:title="apple" class="entry">
<span class="hg">
<span d:dhw="1" role="text" linebreaks="apple" class="hw">apple</span>