Check if string contains number or not
if ([str rangeOfCharacterFromSet:[NSCharacterSet decimalDigitCharacterSet]].location == NSNotFoun...
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Get JSON from URL in Objective-C
- Synchronous NSURL *url = [NSURL URLWithString:kJsonURL]; NSURLRequest *req = [[NSURLRequest all...
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Singleton in Objective-C
Header file Manager.h @interface Manager : NSObject + (instancetype)sharedInstance; @end Method f...
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Log Macros in Objective-C
Prefix.pch # define LOG(...) NSLog(__VA_ARGS__)' # define LOG_PRINTF(FORMAT, ...) printf("%s\n", ...
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