PavelGnatyuk

func onAction() {
    let controller = SecondViewController()
    controller.delegate = self
    self.navigation?.pushViewController(controller, animated: true)
}

PavelGnatyuk

class Coordinator: FirstControllerDelegate {
    let window: UIWindow
    var navigation: UINavigationController?
    
    lazy var firstViewController: FirstViewController = {
        let controller = FirstViewController()
        controller.delegate = self
        return controller
    }()
    

PavelGnatyuk

class Coordinator: FirstControllerDelegate {
  let window: UIWindow
  var navigation: UINavigationController?
  
  lazy var firstViewController: FirstViewController = {
    let controller = FirstViewController()
    controller.delegate = self
    return controller
  }()
  

PavelGnatyuk

class func fetchFriends(cursor: String?) {
    if FBSDKAccessToken.current() != nil {
        
        var params = [String: String]()
        params["fields"] = "id,name,picture,first_name,last_name,middle_name"
        if let after = cursor {
            params["after"] = after
        }
        let request: FBSDKGraphRequest = FBSDKGraphRequest(graphPath: "me/taggable_friends", parameters: params, httpMethod: "GET")
        

PavelGnatyuk

{"bug_type":"109","os_version":"iPhone OS 8.3 (12F70)","build_version":"5.3.2.14","is_beta":true,"app_name":"Viber","app_cohort":"2|date=1429045200000&sf=143441&tid=3b86f5c36d1a7ce5745dcf755fae03cde3c25dc4fa19ab99ca21fdfffdd39cf6","bundleID":"com.viber","name":"Viber","is_first_party":false,"app_version":"5.3.2","share_with_app_devs":false,"slice_uuid":"0087630e-61ef-3086-b085-89601b56e036","adam_id":382617920}
Incident Identifier: D1096BD3-35EF-41BC-80CF-BFF1F9DEA4F0
Beta Identifier:     321C7B2F-8FA5-4494-A2B5-DFE2FBB74CC7
Hardware Model:      iPhone5,1
Process:             Viber [1813]
Path:                /private/var/mobile/Containers/Bundle/Application/F00EBAAC-D1E6-4B5E-AFD8-EC78D4506FE5/Viber.app/Viber
Identifier:          com.viber
Version:             5.3.2.14 (5.3.2)
Beta:                YES

PavelGnatyuk

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        
        int    p, d;
        BOOL isPrime;
        
        for (p = 2; p <= 50; ++p) {
            isPrime = YES;

PavelGnatyuk

- (NSString *)reverse:(NSString *)source {
    if (!source) {
        return nil;
    }
    
    NSMutableString *reversed = [NSMutableString new];
    [source enumerateSubstringsInRange:NSMakeRange(0, [source length]) options:NSStringEnumerationReverse | NSStringEnumerationByComposedCharacterSequences usingBlock:^(NSString *substring, NSRange substringRange, NSRange enclosingRange, BOOL *stop) {
        [reversed appendString:substring];
    }];
    

PavelGnatyuk

- (BOOL)isPhoneValid:(NSString *)phone
{
    NSCharacterSet *phoneSet = [NSCharacterSet characterSetWithCharactersInString:@"-+0123456789()"];
    return [[phone stringByTrimmingCharactersInSet:phoneSet] isEqualToString:@""];
}

- (BOOL)isPhoneNumberValid:(NSString *)phone
{
    NSError *error;
    NSDataDetector *detector = [NSDataDetector dataDetectorWithTypes:NSTextCheckingTypePhoneNumber error:&error];

PavelGnatyuk

+ (void)decompressImage:(UIImage *)image
{
    if ( image ) {
        UIGraphicsBeginImageContext(CGSizeMake(1, 1));
        [image drawAtPoint:CGPointZero];
        UIGraphicsEndImageContext();
    }
}

PavelGnatyuk

#import <Foundation/Foundation.h>

@interface Person : NSObject

@property (copy) NSString *firstName;
@property (copy) NSString *lastName;

- (instancetype)initWithFirstName:(NSString *)firstName andLastName:(NSString *)lastName;

@end