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-(BOOL)application:(UIApplication*)application
didFinishLaunchingWithOptions:(NSDictionary*)launchOptions
{
   UIViewController* vc = <поднять из кода/nib/storyboard>;

   NSLog(@“%@“, self.window); // nil
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; // создаём окно, без него - никак

    self.window.rootViewController = vc;  // эта фигня, вроде, во всех канонических примерах есть
    [self.window addSubview: vc];  // нужен ли “ад subview” ???

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Incident Identifier: FE143E3D-67F5-4160-BC3B-396A49F14D33
CrashReporter Key:   2104fbd822b6e0dc364cf9fc7100a7e0e6ce4e38
Hardware Model:      iPhone7,1
Process:             splashboardd [2140]
Path:                /usr/libexec/splashboardd
Identifier:          splashboardd
Version:             ???
Code Type:           ARM-64 (Native)
Parent Process:      launchd [1]

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-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    if ([segueId isEqualToString:@"seagueAppointmentListToMap"])
    {
        HLJAppointment* appointment = objc_kind_of_cast<HLJAppointment>(sender);
        HLJAppointmentMapController *controller = objc_member_of_cast<HLJAppointmentMapController>(destinationController);

         // property injection
         controller.model = appointment;
   }

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EXC_BREAKPOINT
    /usr/lib/system/libsystem_platform.dylib:0 _os_lock_corruption_abort
    /usr/lib/system/libsystem_platform.dylib:0 _OSSpinLockLockSlow$VARIANT$wfe
    Frameworks/CFNetwork.framework/CFNetwork:0 _ZN19URLConnectionLoader21_loaderEvent_AckBytesEx
    Frameworks/CFNetwork.framework/CFNetwork:0 _ZN19URLConnectionClient26_internal_captureDataArrayEv
    Frameworks/CFNetwork.framework/CFNetwork:0 ___ZN27URLConnectionClient_Classic29_delegate_didReceiveDataArrayEv_block_invoke
    Frameworks/CFNetwork.framework/CFNetwork:0 ___ZN27URLConnectionClient_Classic18_withDelegateAsyncEPKcU13block_pointerFvP16_CFURLConnectionPK33CFURLConnectionClientCurrent_VMaxE_block_invoke_2
    Frameworks/CFNetwork.framework/CFNetwork:0 ___ZNK18QCoreSchedulingSet12performAsyncEU13block_pointerFvvE_block_invoke
    /usr/lib/system/libdispatch.dylib:0 _dispatch_call_block_and_release
    /usr/lib/system/libdispatch.dylib:0 _dispatch_client_callout

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        NSArray* nibObjects = [[NSBundle mainBundle] loadNibNamed: @"HLJCommunicationMethodView"
                                                            owner: self
                                                          options: nil];
        
        HLJCommunicationMethodView* createdView = objc_member_of_cast<HLJCommunicationMethodView>([nibObjects firstObject]);
        result = createdView;

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NSLocale* posixLocale = [[NSLocale alloc] initWithLocaleIdentifier: @"en_US_POSIX"];
        NSCalendar* gregorianCal = [[NSCalendar alloc] initWithCalendarIdentifier: NSCalendarIdentifierGregorian];
        NSDateFormatter* df = [NSDateFormatter new];
        {
            gregorianCal.locale = posixLocale;
            df.locale = posixLocale;
            df.calendar = gregorianCal;
        }
        df.dateFormat = @"yyyy-MM-dd'T'hh:mm:ss.SSSZ";
        

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#ifndef __JFF_CAST_FUNCTIONS_H__
#define __JFF_CAST_FUNCTIONS_H__

#import <Foundation/Foundation.h>

#pragma mark -
#pragma mark NSObject casts
template < class DESTINATION >
DESTINATION* objc_kind_of_cast( id nsObject )
{

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Computer science theory

1. Что такое инвариант цикла?

2. Что такое сложность алгоритма? O(n) нотация. O(???) для операций с NSArray, NSDictionary, запрос в БД (индексированный VS. неиндексированный)

3. CS data structures (linked list, binary tree, array)

4. Различия аутентификации, авторизации

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using UnityEngine;
using System.Collections.Generic;
using UnityEditor;
using System.Text.RegularExpressions;
using System.IO;
using System.Text;
 
 
// http://forum.unity3d.com/threads/unityengine-ui-dll-is-in-timestamps-but-is-not-known-in-assetdatabase.274492/#post-1942214
public class ReimportUnityEngineUI

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Storyboard :
   + видна структура приложения (переходы)
   + визуально верстаешь
   - частые и трудно решаемые merge conflict
   - тормоза xcode когда “всё в одном файле” (сюрприз! можно иметь несколько storyboard в одном прожекте)

Xib :
   + визуально верстаешь
   + merge conflict реже
   + Нет тормозов, ибо “1 xib - 1 screen”