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+ (NSString*)enumToString:(SomeEnum)someEnumValue
{
	NSDictionary *strings =
	@{
		@(SomeEnumUndefined) : @"Undefined",
		@(SomeEnumValue1) : @"Value1",
		@(SomeEnumValue2) : @"Value2",
		// Ещё 100500 пар
	};

	return strings[@(someEnumValue)];
}

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NSString* bodyParams = [NSString stringWithFormat:@"username=%@&password=%@&client_secret=very_secret", username, password];

// Ниже по коду

[request setHTTPMethod:@"POST"];
[request setHTTPBody:[bodyParams dataUsingEncoding:NSUTF8StringEncoding]];

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-(id)copyWithZone:(NSZone *)zone
{
    NSString* str = [self toJSONString];
    
    return [[MyBeautifulClass alloc] initWithJSON:str :NO];
}

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...
([dictionary stringObjectForKey:@"scale"].length > 0) ? (_scale = [dictionary stringObjectForKey:@"scale"]) : (_scale = @"1");
...

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NSString* string = [NSString stringWithFormat:@"%li", (long)number];
NSInteger strCount = [string length] - [[string stringByReplacingOccurrencesOfString:@"1" withString:@""] length];

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NSString *categoryString;

for (Model *categoryItem in arrayCategory) {
        if (categoryItem.isCheck) {
            if (categoryString == nil) {
                categoryString = [NSString stringWithFormat:@"%@", categoryItem.id];
            } else {
                categoryString = [NSString stringWithFormat:@"%@,%@", categoryString, categoryItem.id];
            }
        }
    }

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NSString *userName = @"username";
  self.wscSession = [[[[[[[[[[[[WSCSessionBuilder create:urlString]
                                             withConnectionDelegate:WSCSessionConnectionDelegate]
                                           withUserName:userName]
                                         withObserverDelegate:WSCSessionConnectionObserverDelegate]
                                       withPackage:[[WSCCallPackage alloc] init]]
                                     withHttpContext:httpContext]
                                   withIceServerConfig:iceServerConfig]
                                 build];
  // Open a connection to the server...
  [self.wscSession open];

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- (NSString*) SHA256 {
    const char *cStr = [self UTF8String];
    unsigned char result[CC_SHA256_DIGEST_LENGTH];
    CC_SHA256(cStr, strlen(cStr), result);
    NSString *s = [NSString  stringWithFormat:
                   @"%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X",
                   result[0], result[1], result[2], result[3], result[4],
                   result[5], result[6], result[7],
                   result[8], result[9], result[10], result[11], result[12],
                   result[13], result[14], result[15],
                   result[16], result[17], result[18], result[19],
                   result[20], result[21], result[22], result[23], result[24],
                   result[25], result[26], result[27],
                   result[28], result[29], result[30], result[31]
                   ];
    return [s lowercaseString];
}

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стретор, ау

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~Тред о пользе багра~