mikeash

dispatch_block_t RecursiveBlock(void (^block)(dispatch_block_t recurse))
{
    // assuming ARC, so no explicit copy
    return ^{ block(RecursiveBlock(block)); };
}

typedef void (^OneParameterBlock)(id parameter);

OneParameterBlock RecursiveBlock1(void (^block)(OneParameterBlock recurse, id parameter))
{

xslim

#!/bin/sh

projectfile=`find -d . -name 'project.pbxproj'`
projectdir=`echo *.xcodeproj`
projectfile="${projectdir}/project.pbxproj"
tempfile="${projectdir}/project.pbxproj.out"
savefile="${projectdir}/project.pbxproj.mergesave"

cat $projectfile | grep -v "<<<<<<< HEAD" | grep -v "=======" | grep -v "^>>>>>>> " > $tempfile
cp $projectfile $savefile

chriswk

HOW DUZ I QSORT YR DATA AN YR BEGIN AN YR END
END PWNS BEGIN
O RLY?
YA RLY
GTFO
OIC
I HAS PIVOT AN LEFT AN RIGHT AN TEMP
PIVOT R NMBR BEGIN OF DATA
LEFT R SUM OF BEGIN AN 1
RIGHT R END

hollance

Communicate between objects using channels

When you have two objects A and B, say two view controllers, that you want to have talk to each other, you can choose from the following options:

• NSNotificationCenter. This is anonymous one-to-many communication. Object A posts a notification to the NSNotificationCenter, which then distributes it to any other objects listening for that notification, including Object B. A and B do not have to know anything about each other, so this is a very loose coupling. Maybe a little too loose...

• KVO (Key-Value Observing). One object observes the properties of another. This is a very tight coupling, because Object B is now peeking directly into Object A. The advantage of KVO is that Object A doesn't have to be aware of this at all, and therefore does not need to send out any notifications -- the KVO mechanism takes care of this behind the scenes.

• Direct pointers. Object A has a pointer to Object B and directly sends it messages when something of interest h

delebedev

typedef NSCachedURLResponse * (^WGNCachedResponseBlock)(NSURLConnection *connection, NSCachedURLResponse *cachedResponse);

- (WGNCachedResponseBlock)cacheResponseBlockWithTime:(NSTimeInterval)time {
	return ^NSCachedURLResponse *(NSURLConnection *connection, NSCachedURLResponse *cachedResponse) {
		NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse*)[cachedResponse response];
		
		NSDictionary *headers = [httpResponse allHeaderFields];
		NSString *cacheControl = [headers valueForKey:@"Cache-Control"];
		NSString *expires = [headers valueForKey:@"Expires"];
		if((cacheControl == nil) && (expires == nil)) {

berzniz

@interface NSObject (Debounce)

- (void)debounce:(SEL)action delay:(NSTimeInterval)delay;

@end

alanzeino

#!/usr/bin/swift

// Run: $ swift noCrashplan.swift
// Background: https://github.com/KrauseFx/overkill/issues/3#issuecomment-270505227

import Foundation
import Cocoa
import ServiceManagement

let badApps = [ "Code42 CrashPlan", "CrashPlanService", "CrashPlanLauncher", "CrashPlanWeb" ]

hofmannsven

Increase key repeat rate on macOS

Settings: System Preferences » Keyboard » Key Repeat/Delay Until Repeat

Use the commands below to increase the key repeat rate on macOS beyond the possible settings via the user interface. The changes aren't applied until you restart your computer.

Source: https://apple.stackexchange.com/a/83923

berikv

# Paste these lines into your ~/.bashrc or other shell initialisation script
# Note that for most of these, your gitconfig has to have the aliasses from the .gitconfig in this gist

alias co='git checkout'
alias st='git status'
alias add='git add'
alias commit='git commit'

# Amend anything that is staged

sharplet

// Copyright (c) 2019–20 Adam Sharp and thoughtbot, inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in