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Why was the switch statement designed to need a break?
...at there's
even a special comment convention,
shown above, that tells lint "this is
really one of those 3% of cases where
fall through was desired."
I think it was a good idea for C# to require an explicit jump statement at the end of each case block (while still allowing multiple case lab...
Explanation of JSONB introduced by PostgreSQL
...o a json column postgres doesn't have to actually run the functionality to convert the text to json on every row which will likely save a vast amount of time alone.
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What are allowed characters in cookies?
...Utility to safely encode the cookie value before writing to the cookie and convert it back to its original form on reading it out.
// Encode
HttpUtility.UrlEncode(cookieData);
// Decode
HttpUtility.UrlDecode(encodedCookieData);
This will stop ampersands and equals signs spliting a value into a b...
What is __declspec and when do I need to use it?
...
For declaring COM interfaces and classes, for example, you use __declspec(uuid), for exporting functions sans a DEF file you use __declspec(dllexport), etc. The full list is quite long.
– Seva Alekseyev
F...
How do I get the user agent with Flask?
...
Detailed information about 'accept_language" header: https://www.w3.org/International/questions/qa-lang-priorities
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Collection that allows only unique items in .NET?
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T item in this case should implement IEquatable interface. If class does not inherit this interface, HashSet<T> adds duplicate elements.
– Rudolf Dvoracek
Oct 15 '18 at 11:04
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ListCtrl 重绘（Custom Draw） - C/C++ - 清泛网 - 专注C/C++及内核技术
...rawList ( NMHDR* pNMHDR, LRESULT* pResult )
{
NMLVCUSTOMDRAW* pLVCD = reinterpret_cast<NMLVCUSTOMDRAW*>( pNMHDR );
// Take the default processing unless we set this to something else below.
*pResult = 0;
// First thing - check the draw stage. If it's the control's prepaint
...
How to urlencode data for curl command?
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@ColinFraizer the single quote serves to convert the following character into its numeric value. ref. pubs.opengroup.org/onlinepubs/9699919799/utilities/…
– Sam
Nov 22 '18 at 22:37
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iOS Equivalent For Android Shared Preferences
...ned. Don't abuse this and use it as a large database, because it is loaded into memory every time you open your app, whether you need something from it or not (other parts of your app will also use this).
Objective-C:
Reading:
NSUserDefaults *preferences = [NSUserDefaults standardUserDefaults];
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Select N random elements from a List in C#
...c List<T> GetRandomElements<T>(this IEnumerable<T> list, int elementsCount)
{
return list.OrderBy(arg => Guid.NewGuid()).Take(elementsCount).ToList();
}
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