orta

krodak

import RealmSwift
import Realm

protocol CascadeDeleting: class {
    func delete<Entity>(_ list: List<Entity>, cascading: Bool)
    func delete<Entity>(_ results: Results<Entity>, cascading: Bool)
    func delete<Entity: Object>(_ entity: Entity, cascading: Bool)
}

steipete

# The trick is to link the DeviceSupport folder from the beta to the stable version.
# sudo needed if you run the Mac App Store version. Always download the dmg instead... you'll thank me later :)

# Support iOS 15 devices (Xcode 13.0) with Xcode 12.5:
sudo ln -s /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/15.0 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport

# Then restart Xcode and reconnect your devices. You will need to do that for every beta of future iOS versions

# (A similar approach works for older versions too, just change the version number after DeviceSupport)

ubergoober

When you get an error code in with the domain kCFStreamErrorDomainSSL, you can generally find the error codes in SecureTransport.h which is in /System/Library/Frameworks/Security.framework.  Here are the error codes:

enum {
  errSSLProtocol                  = -9800,  /* SSL protocol error */
  errSSLNegotiation               = -9801,  /* Cipher Suite negotiation failure */
  errSSLFatalAlert                = -9802,  /* Fatal alert */
  errSSLWouldBlock                = -9803,  /* I/O would block (not fatal) */
  errSSLSessionNotFound           = -9804,  /* attempt to restore an unknown session */
  errSSLClosedGraceful            = -9805,  /* connection closed gracefully */
  errSSLClosedAbort               = -9806,  /* connection closed via error */

blessingLopes

public protocol Selfie: CustomStringConvertible {}

extension Selfie {

  var description: String {
    let mirror = Mirror(reflecting: self)
    return "\(mirror.subjectType)( \(mirror.children.map({ "\($0!): \($1) "}).joinWithSeparator(", ")))"
   }
}

alanzeino

LLDB Debugging Cheat Sheet

Commands

LLDB Commands

LLDB comes with a great set of commands for powerful debugging.

help

Your starting point for anything. Type help to get a list of all commands, plus any user installed ones. Type 'help for more information on a command. Type help to get help for a specific option in a command too.

PurpleBooth

Project Title

One Paragraph of project description goes here

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

Prerequisites

chrisswong

2009 - Mastering iPhone Scroll Views
	UIScrollView Basics

2010 - Designing Apps with Scroll Views
	Photo browsing
	Tiling

2011 - Advanced Scroll View Techniques
	Infinite scrolling
	Stationary header views

Kartones

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

kevin-smets

Default

Powerlevel10k