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What are naming conventions for MongoDB?
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Keep'em short: Optimizing Storage of Small Objects, SERVER-863. Silly but true.
I guess pretty much the same rules that apply to relation databases should apply here. And after so many decades there is still no agreement whether RDBMS tables should be named singul...
Best way to merge two maps and sum the values of same key?
...mutable.Map[Int,Int] = Map(1 -> 109, 3 -> 300, 2 -> 20)
Specifically, the binary operator for Map[K, V] combines the keys of the maps, folding V's semigroup operator over any duplicate values. The standard semigroup for Int uses the addition operator, so you get the sum of values for eac...
Interop type cannot be embedded
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Wouldn't it make more sense to do as the error says and "use the applicable interface"? I had this error (from a different class) and was able to instantiate an interface which had that class specified as its CoClass attribute, and it worked. As in Michael Gustus'...
How to add Google Analytics Tracking ID to GitHub Pages
...e are queries from all over the world in history so I'm not sure where the error is. I will likely remove it because the data isn't correct.
– jtlindsey
Jun 27 '16 at 19:29
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Android Notification Sound
...n Codeding
String en_alert, th_alert, en_title, th_title, id;
int noti_all, noti_1, noti_2, noti_3, noti_4 = 0, Langage;
class method
Intent intent = new Intent(context, ReserveStatusActivity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);
Notificati...
Python module for converting PDF to text [closed]
...[7]: '20100424' In [8]: from pdfminer.converter import LTTextItem ImportError: cannot import name LTTextItem .... LITERALS_DCT_DECODE LTChar LTImage LTPolygon LTTextBox LITERAL_DEVICE_GRAY LTContainer LTLine LTRect LTT...
Meaning of 'const' last in a function declaration of a class?
...ethod declaration in the above example to the code below you will get some errors.
void Foo()
{
counter++; //this works
std::cout << "Foo" << std::endl;
}
void Foo() const
{
counter++; //this will not compile
std::cout << "F...
Mercurial - all files that changed in a changeset?
How can you determine all the files that changed in a given changeset?
7 Answers
7
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When should I use the Visitor Design Pattern? [closed]
...want to make the fewest possible modifications to it.
The Visitor pattern allows you to move each new operation in a suitable class, and you need to extend the hierarchy's interface only once. Let's do it. First, we define an abstract operation (the "Visitor" class in GoF) which has a method for ev...
What does “Auto packing the repository for optimum performance” mean?
...... fatal: Out of memory, malloc failed (tried to allocate 79610689 bytes) error: failed to run repack -- this is what I get for sticking our entire codebase into one git repo. Guess I'm going to kill apps and force repack "manually"
– ruffin
Feb 7 '13 at 15:07...