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Fastest way to determine if record exists

...lan_KDeclan_K 5,96122 gold badges1313 silver badges3030 bronze badges 5 ...
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Check whether variable is number or string in JavaScript

...| edited Apr 22 '13 at 13:00 answered Aug 20 '09 at 2:25 Sa...
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Is there a replacement for unistd.h for Windows (Visual C)?

...le console program written for Unix to the Windows platform ( Visual C++ 8.0 ). All the source files include "unistd.h", which doesn't exist. Removing it, I get complaints about misssing prototypes for 'srandom', 'random', and 'getopt'. I know I can replace the random functions, and I'm pretty sure...
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Are NSLayoutConstraints animatable? [duplicate]

... Just follow this exact pattern: self.heightFromTop.constant = 550.0f; [myView setNeedsUpdateConstraints]; [UIView animateWithDuration:0.25f animations:^{ [myView layoutIfNeeded]; }]; where myView is the view where self.heightFromTop was added to. Your view is "jumping" because the o...
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How should I call 3 functions in order to execute them one after the other?

...em asynchronously using the setTimeout function. setTimeout(doSomething, 10); setTimeout(doSomethingElse, 10); setTimeout(doSomethingUsefulThisTime, 10); This is, however, a bit ugly and violates the DRY principle[wikipedia]. We could clean this up a bit by creating a function that accepts an arr...
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How to list only the file names that changed between two commits?

...tify the commits. You can also do, for example git diff --name-only HEAD~10 HEAD~5 to see the differences between the tenth latest commit and the fifth latest (or so). share | improve this answer...
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Can gcc output C code after preprocessing?

... 200 Yes. Pass gcc the -E option. This will output preprocessed source code. ...
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How to retrieve the current value of an oracle sequence without increment it?

...hers are using the sequence during this time - they (or you) may get ORA-08004: sequence SEQ.NEXTVAL goes below the sequences MINVALUE and cannot be instantiated Also, you might want to set the cache to NOCACHE prior to the resetting and then back to its original value afterwards to make sure yo...
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Parse large JSON file in Nodejs

...function pump() { var pos; while ((pos = buf.indexOf('\n')) >= 0) { // keep going while there's a newline somewhere in the buffer if (pos == 0) { // if there's more than one newline in a row, the buffer will now start with a newline buf = buf.slice(1); // discard it ...
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PHPDoc type hinting for array of objects?

...[] */ private $items; } for class properties. Previous answer from '09 when PHPDoc (and IDEs like Zend Studio and Netbeans) didn't have that option: The best you can do is say, foreach ($Objs as $Obj) { /* @var $Obj Test */ // You should be able to get hinting after the preceding li...