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MongoDB with redis
...oDB does not have yet an expiration mechanism. Capped collections cannot really be used to implement a real TTL. Redis has a TTL-based expiration mechanism, making it convenient to store volatile data. For instance, user sessions are commonly stored in Redis, while user data will be stored and index...
Can Eclipse refresh resources automatically?
...This issue will be fixed in Eclipse 3.7 (Indigo). While "Refresh Automatically" does eventually bring resources back into sync, the refresh hook only exists for Windows, so on Linux and Mac OS it has to poll the filesystem periodically.
From 3.7 there's a new preference Settings > General > ...
How do I count a JavaScript object's attributes? [duplicate]
...ry object in JavaScript derives from — includes many attributes automatically, and the exact set of attributes you get depends on the particular interpreter and what code has executed before yours. So, you somehow have to separate the ones you defined from those you got "for free."
Here's one way...
Distinct not working with LINQ to Objects
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LINQ Distinct is not that smart when it comes to custom objects.
All it does is look at your list and see that it has two different objects (it doesn't care that they have the same values for the member fields).
One workaround is to implement the IEquatable interface as shown here.
If yo...
Segue to another storyboard?
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Yes, but you have to do it programmatically:
// Get the storyboard named secondStoryBoard from the main bundle:
UIStoryboard *secondStoryBoard = [UIStoryboard storyboardWithName:@"secondStoryBoard" bundle:nil];
// Load the initial view controller from the storyb...
Drop data frame columns by name
...d like to remove from a data frame. I know that we can delete them individually using something like:
20 Answers
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Creating a copy of an object in C# [duplicate]
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I'm sorry, I know this is a really old post but could you provide a link to documentation that says ICloneable is deprecated? I looked at the documentation for .net 4.5 and ICloneable doesn't say anything about being deprecated. If it is then I'd like to ...
Navigation Drawer (Google+ vs. YouTube)
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Edit #3:
The Navigation Drawer pattern is officially described in the Android documentation!
Check out the following links:
Design docs can be found here.
Developer docs can be found here.
Edit #2:
Roman Nurik (an Android design engineer at Google) has confirmed t...
Easiest way to split a string on newlines in .NET?
...know of to split strings is with the Split method. However that will not allow me to (easily) split on a newline, so what is the best way to do it?
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How to find if a given key exists in a C++ std::map
...a particular key exists."
The documentation for map::count says: "Because all elements in a map container are unique, the function can only return 1 (if the element is found) or zero (otherwise)."
To retrieve a value from the map via a key that you know to exist, use map::at:
value = m.at(key)
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