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Right query to get the current number of connections in a PostgreSQL DB
Which of the following two is more accurate?
6 Answers
6
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In what cases will HTTP_REFERER be empty
...what circumstances does this happen? If I get an empty one, does it always m>me m>an that the user changed it? Is getting an empty one the sam>me m> as getting a null one? and under what circumstances do I get that too?
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Creating an official github mirror
How do I create a github mirror for an external git repository, such that it appears as "real mirror", e.g., as in https://github.com/mirrors ?
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How to construct a set out of list items in python?
I have a list of filenam>me m>s in python and I would want to construct a set out of all the filenam>me m>s.
6 Answers
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How do I set up a basic Ruby project?
I want to create a small Ruby project with 10 ~ 20 classes/files. I need som>me m> gems and I want to use RSpec as test fram>me m>work.
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How to include a child object's child object in Entity Fram>me m>work 5
I am using Entity Fram>me m>work 5 code first and ASP.NET MVC 3 .
4 Answers
4
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Get all child views inside LinearLayout at once
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Use getChildCount() and getChildAt(int index).
Example:
LinearLayout ll = …
final int childCount = ll.getChildCount();
for (int i = 0; i < childCount; i++) {
View v = ll.getChildAt(i);
// Do som>me m>thing with v.
// …
}
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Shallow copy of a Map in Java
As I understand it, there are a couple of ways (maybe others as well) to create a shallow copy of a Map in Java:
3 Answer...
Is there a way to specify an “empty” C# lambda expression?
I'd like to declare an "empty" lambda expression that does, well, nothing.
Is there a way to do som>me m>thing like this without needing the DoNothing() m>me m>thod?
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NSLog/printf specifier for NSInteger?
A NSInteger is 32 bits on 32-bit platforms, and 64 bits on 64-bit platforms. Is there a NSLog specifier that always matches the size of NSInteger ?
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