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How important is the order of columns in indexes?
...t not for B=@b, for C=@c norB=@b AND C=@c. The case A=@a AND C=@c is mixed one, as in the A=@a portion will use the index, but the C=@c not (the query will scan all B values for A=@a, will not 'skip' to C=@c). Other database systems have the so called 'skip scan' operator that can take some advantag...
What's the recommended way to extend AngularJS controllers?
...are same variables and functions across controllers that do similar things(one is for editing, another creating etc...). This is definitely one of the solutions...
– vladexologija
May 14 '13 at 10:22
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What is the effect of extern “C” in C++?
...s are distinct types even if otherwise identical
Linkage specs nest, inner one determines the final linkage
extern "C" is ignored for class members
At most one function with a particular name can have "C" linkage (regardless of namespace)
extern "C" forces a function to have external linkage (cannot...
Do sessions really violate RESTfulness?
...
First, let's define some terms:
RESTful:
One can characterise applications conforming to the REST constraints
described in this section as "RESTful".[15] If a service violates any
of the required constraints, it cannot be considered RESTful.
according to wikip...
How do I use arrays in C++?
...rywhere. C++ provides abstractions that are easier to use and less error-prone ( std::vector<T> since C++98 and std::array<T, n> since C++11 ), so the need for arrays does not arise quite as often as it does in C. However, when you read legacy code or interact with a library written ...
What version of javac built my jar?
...ed to build a jar? I have a jar file, and it could have been built in any one of three JDKs. We need to know exactly which one, so we can certify compatibility. Is the compiler version embedded somewhere in the class files or jar?
...
Commonly accepted best practices around code organization in JavaScript [closed]
...t side web applications richer and more functional, I've started to notice one problem...
28 Answers
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(HTML) Download a PDF file instead of opening them in browser when clicked
...ile link downloadable instead of opening them in the browser? How is this done in html? (I'd assume it's done via javascript or something).
...
How to detect if app is being built for device or simulator in Swift
...#endif
After Swift 4.1 version
Latest use, now directly for all in one condition for all types of simulators need to apply only one condition -
#if targetEnvironment(simulator)
// your simulator code
#else
// your real device code
#endif
For more clarification, you can check Swift pr...
How to set the UITableView Section title programmatically (iPhone/iPad)?
...
Nothing wrong with the other answers but this one offers a
non-programmatic solution that may be useful in situations where one
has a small static table. The benefit is that one can organize the
localizations using the storyboard. One may continue to export
local...