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How do I manage MongoDB connections in a Node.js web application?

...tive says: You open do MongoClient.connect once when your app boots up and reuse the db object. It's not a singleton connection pool each .connect creates a new connection pool. So, to answer your question directly, reuse the db object that results from MongoClient.connect(). This gives yo...
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How to convert wstring into string?

... using std::wcout.imbue(locale) should do the job aswell, and it has the benefit that it does not change any global state. – smerlin Jan 26 '11 at 15:22 ...
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How many threads can a Java VM support?

... OS, on what other processes are doing, on what Java release you're using, and other factors. I've seen a Windows server have > 6500 Threads before bringing the machine down. Most of the threads were not doing anything, of course. Once the machine hit around 6500 Threads (in Java), the whole m...
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Access key value from Web.config in Razor View-MVC3 ASP.NET

... What's the difference between @Anwar's answer and yours? Besides the naming ;) – Nate-Wilkins Oct 11 '13 at 16:40 21 ...
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Is 1.0 a valid output from std::generate_canonical?

I always thought random numbers would lie between zero and one, without 1 , i.e. they are numbers from the half-open interval [0,1). The documention on cppreference.com of std::generate_canonical confirms this. ...
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What does the [Flags] Enum Attribute mean in C#?

...t expect in bitwise operations, because by default the values start with 0 and increment. Incorrect declaration: [Flags] public enum MyColors { Yellow, // 0 Green, // 1 Red, // 2 Blue // 3 } The values, if declared this way, will be Yellow = 0, Green = 1, Red = 2, Blu...
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UIView Infinite 360 degree rotation animation?

I'm trying to rotate a UIImageView 360 degrees, and have looked at several tutorials online. I could get none of them working, without the UIView either stopping, or jumping to a new position. ...
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How do I select an element in jQuery by using a variable for the ID?

... Also, you should consider renaming your ids to something more meaningful (and HTML compliant as per Paolo's answer), especially if you have another set of data that needs to be named as well. share | ...
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How to check if a value exists in an array in Ruby

I have a value 'Dog' and an array ['Cat', 'Dog', 'Bird'] . 26 Answers 26 ...
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Gesture recognizer and button actions

...archy is not working in this case. It probably should, but it's not being handled by Apple. – Mustafa Jan 28 '11 at 7:29 ...