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WHERE vs HAVING
...ain any aggregates, putting it into the WHERE clause will most probably be more efficient.
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Why do people say there is modulo bias when using a random number generator?
...e, and so you'll need to perform RAND_MAX/n calls to rand() on average.
A more efficient formula approach would be to take some large range with a length divisible by n, like RAND_MAX - RAND_MAX % n, keep generating random numbers until you get one that lies in the range, and then take the modulus:...
What is the most efficient Java Collections library? [closed]
...de (in my experience) this is "better" than a collections API which may be more efficient but doesn't make my code as readable.
Given that the overlap between Trove and the Guava is pretty much nil, perhaps you could clarify what you're actually looking for from a collections library.
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How to concatenate two MP4 files using FFmpeg?
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Helpful answer. And it made even more sense to me when I read this variation: superuser.com/a/607384/74576
– Ryan
Feb 22 '16 at 18:54
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How can I add a key/value pair to a JavaScript object?
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Passing parameters to addTarget:action:forControlEvents
...ust check (objectClass *)[button.layer valueForKey:@"anyKey"]; It's like a more free version of .tag
– Albert Renshaw
Oct 14 '16 at 20:40
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Why create “Implicitly Unwrapped Optionals”, since that implies you know there's a value?
...ight into it. Even then, it is often good to unwrap the optional and use a more descriptive assert if it is nil.
When Not To Use An Implicitly Unwrapped Optional
1. Lazily Calculated Member Variables
Sometimes you have a member variable that should never be nil, but it cannot be set to the correc...
Cache an HTTP 'Get' service response in AngularJS?
...to enable or disable caching of the HTTP response. See
$http Caching for more
information.
Boolean value
So you can set cache to true in its options:
$http.get(url, { cache: true}).success(...);
or, if you prefer the config type of call:
$http({ cache: true, url: url, method: 'GET'}).succ...
Returning multiple values from a C++ function
...u should look at boost::tuple (in C++11 and newer, there's std::tuple) for more than two return results.
With introduction of structured binding in C++ 17, returning std::tuple should probably become accepted standard.
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Should I return EXIT_SUCCESS or 0 from main()?
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