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What is the difference between Pan and Swipe in iOS?
... to be considered a pan. It changes (changed) when a finger moves while at least the minimum number of fingers are pressed down. It ends (ended) when all fingers are lifted.
Clients of this class can, in their action methods, query the UIPanGestureRecognizer object for the current translation of th...
Why does document.querySelectorAll return a StaticNodeList rather than a real Array?
...rty of type unsigned long because they believe every implementation can at least support that, but they won't say explicitly that the [] index operator should be overloaded to support getting positional elements, because they don't want to stymie some poor little language that comes along that wants...
visual c++: #include files from other projects in the same solution
...refer to add the parent folder of the projects source files, so you can at least specify yourself, e.g. #include "proj2\include.h". Having multiple projects per solution seems very directed towards the NET languages, as they are used very differently. Yet to find a great way to overcome this for C++...
HashSet versus Dictionary w.r.t searching time to find if an item exists
...p times, and my conclusion is that they ARE in fact the same speed. (Or at least, if there is any difference, then the difference is well within the Standard Deviation of that speed)
Specifically, 100,000,000 lookups was taking between 10 and 11.5 seconds for both, for me, in this test.
Test Code:
p...
What are the pros and cons of performing calculations in sql vs. in your application
...manages to fetch more than one row per system call. Row at a time takes at least four system calls.
– wildplasser
Sep 22 '11 at 22:42
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About Java cloneable
... Block says not to use Cloneable. He does not say don't use cloning (or at least I hope not). There are many ways to implement cloning simply that are far more efficient than classes like SerializationUtils or BeanUtils that use reflection. See my post below for an example.
– C...
Why escape_javascript before rendering a partial?
... escape_javascript() has now a shorter method: simpley j() (in Rails 4 at least).
– mjnissim
Aug 16 '13 at 19:56
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What is a “cache-friendly” code?
...n the cache. So, when the cache is going to load an item, it looks for the least recently used3 item among those four, flushes it to main memory, and loads the new item in its place.
The problem is probably fairly obvious: for a direct-mapped cache, two operands that happen to map to the same cache ...
The difference between the 'Local System' account and the 'Network Service' account?
... account that is very similar to Network Service and meant to run standard least-privileged services. However, unlike Network Service it accesses the network as an Anonymous user.
Name: NT AUTHORITY\LocalService
the account has no password (any password information you provide is ignored)
HKCU rep...
Catching java.lang.OutOfMemoryError?
...VM is dying (or already dead) anyway and by catching the Error there is at least a chance of cleanup.
The caveat is that you have to target the catching of these types of errors only in places where cleanup is possible. Don't blanket catch(Throwable t) {} everywhere or nonsense like that.
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