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Possibility of duplicate Mongo ObjectId's being generated in two different collections?

...some nicer properties for storage in a database such as roughly increasing order and encoding their creation time for free. The key thing for your use case is that they are designed to guarantee uniqueness to a high probability even if they are generated on different machines. Now if you were refer...
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Class does not implement its superclass's required members

...ype to be Self (Swift's equivalent of Objective-C's instanceType). But in order to do this, I actually need to use a required initializer method. class Box { var size: CGSize init(size: CGSize) { self.size = size } class func factory() -> Self { return self.init(...
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How is Node.js inherently faster when it still relies on Threads internally?

...ld be only what's needed" I get the impression these should be of the same order. Closures are not cheap, the runtime will have to keep the whole call tree of the single-threaded application in memory ("emulating stacks" so to say) and will be able to clean up when a leaf of tree gets released as th...
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How do I ZIP a file in C#, using no 3rd-party APIs?

...ough. There is an additional file that MUST be included in the archive in order for the ZipPackage to work. If this file is added, then the resulting ZIP package can be opened directly from Windows Explorer - no problem. All you have to do is add the [Content_Types].xml file to the root of the ar...
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Why would one use nested classes in C++?

...lection and Element - bad, because the name "Element" is general enough in order to cause a possible name clash introduce a namespace someSpecificCollection and declare classes someSpecificCollection::Collection and someSpecificCollection::Element. No risk of name clash, but can it get any more verb...
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Best explanation for languages without null

...ut I appreciate that you are just using a simplified model of the world in order to communicate gratitude, so I won't quibble more about the flawed assumptions of your world-model. :P (So much complexity in the real world! :) ) – Brian Oct 22 '10 at 17:07 ...
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How to pass anonymous types as parameters?

...passed around, a more structured way may / should normally be preferred in order to not introduce hard to find bugs (you're sidestepping the type system). However, if you want to find a compromise, another way is to simply pass a generic Dictionary. C# dictionary initializers are pretty convenient t...
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Why do access tokens expire?

...the client ID and client secret are needed along with the refresh token in order to generate the new access token. – Spike Feb 8 '12 at 20:43 9 ...
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jQuery AJAX file upload PHP

... Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity. ...
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What is a reasonable code coverage % for unit tests (and why)? [closed]

...eting priorities, code coverage races to 0%. We need a required number in order to build the unit testing habit within the team. I came to this question looking for some guidance on determining that number for an area I am not very familiar with, and this is really no help at all. I'm glad people...