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Generate a random alphanumeric string in Cocoa

...there. There's no reason to use an NSString for letters when a simple char array would work just fine. In fact, using [letters characterAtIndex:(rand() % [letters length])] seems to me to be less concise than just letters[rand() % strlen(letters)]. The Foundation classes are really helpful, but for ...
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How to send a GET request from PHP?

...our php code: (PROXY WITHOUT AUTENTICATION EXAMPLE) <?php $aContext = array( 'http' => array( 'proxy' => 'proxy:8080', 'request_fulluri' => true, ), ); $cxContext = stream_context_create($aContext); $sFile = file_get_contents("http://www.google.com", False, $cx...
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Is there any simple way to find out unused strings in Android project?

...d layoutopt tool used to find, and more) - Unused resources - Inconsistent array sizes (when arrays are defined in multiple configurations) - Accessibility and internationalization problems (hardcoded strings, missing contentDescription, etc) - Icon problems (like missing densities, duplicate icons,...
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How can I get the ID of an element using jQuery?

... even $('#test')[0] is that $('#test') is a JQuery selector and returns an array() of results not a single element by its default functionality an alternative for DOM selector in jquery is $('#test').prop('id') which is different from .attr() and $('#test').prop('foo') grabs the specified DOM f...
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Is it possible to refresh a single UITableViewCell in a UITableView?

... [self.tableView beginUpdates]; [self.tableView reloadRowsAtIndexPaths:[NSArray arrayWithObjects:indexPathOfYourCell, nil] withRowAnimation:UITableViewRowAnimationNone]; [self.tableView endUpdates]; In Xcode 4.6 and higher: [self.tableView beginUpdates]; [self.tableView reloadRowsAtIndexPaths:@...
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getting type T from IEnumerable

...ng works: public static Type GetAnyElementType(Type type) { // Type is Array // short-circuit if you expect lots of arrays if (type.IsArray) return type.GetElementType(); // type is IEnumerable<T>; if (type.IsGenericType && type.GetGenericTypeDefinition() == typ...
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Why (0-6) is -6 = False? [duplicate]

...is used to refer small integers and share them so access is fast. It is an array of 262 pointers to integer objects. Those integer objects are allocated during initialization in a block of integer objects we saw above. The small integers range is from -5 to 256. Many Python programs spend a lot of t...
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Stop all active ajax requests in jQuery

...}); Then you can abort the request: request.abort(); You could use an array keeping track of all pending ajax requests and abort them if necessary. share | improve this answer | ...
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How to check if an NSDictionary or NSMutableDictionary contains a key?

... in small cases. But as programs grow using the wrong data structure (like array instead of dict in the first example) will end up costing you big. – Andrew Hoos May 8 '14 at 7:27 ...
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Check if one IEnumerable contains all elements of another IEnumerable

...not work if there are duplicates in the list. For example comparing a char array of 441 and 414 returns 41 and thus the count fails. – John Aug 9 '19 at 19:37 add a comment ...