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AWS Error Message: A conflicting conditional operation is currently in progress against this resourc

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Cartesian product of x and y array points into single array of 2D points

...oblem with different properties. Some are faster than others, and some are more general-purpose. After a lot of testing and tweaking, I've found that the following function, which calculates an n-dimensional cartesian_product, is faster than most others for many inputs. For a pair of approaches that...
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Why is require_once so bad to use?

...d good reason to: require_once() was pretty inefficient before some of the more recent versions of PHP. But that's been fixed, and it is my contention that the extra bytecode you'd have to compile for the conditional, and the extra method call, would by far overweigh any internal hashtable check. N...
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How to print a date in a regular format?

...are an instance of a class, you are an object. Why would you need it to be more complicated ? – e-satis Sep 12 '12 at 10:52 9 ...
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How can I convert byte size into a human-readable format in Java?

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Looking for a 'cmake clean' command to clear up CMake output

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Double not (!!) operator in PHP

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Adding images or videos to iPhone Simulator

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How to skip over an element in .map()?

...do that, which is not unreasonable since it has some cost, you can use the more general .reduce(). You can generally express .map() in terms of .reduce: someArray.map(function(element) { return transform(element); }); can be written as someArray.reduce(function(result, element) { result.push(tr...
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How does a “stack overflow” occur and how do you prevent it?

...t be overwritten by the function call. The function you call might use up more stack for its own local variables. When it's done, it frees up the local variable stack space it used, then returns to the previous function. Stack overflow A stack overflow is when you've used up more memory for the ...