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What does the “__block” keyword mean?

...ple, both localCounter and localCharacter are modified before the block is called. However, inside the block, only the modification to localCharacter would be visible, thanks to the __block keyword. Conversely, the block can modify localCharacter and this modification is visible outside of the block...
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What are “decorators” and how are they used?

...rs: Caching: if we have a service which makes potentially expensive HTTP calls, we can wrap the service in a caching decorator which checks local storage before making the external call. Debugging/Tracing: have a switch depending on your development/production configuration which decorates your se...
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How to shrink the .git folder

...t's somehow possible exploiting git, but really not recommended). you can call git gc --aggressive --prune, which will perform garbage collection in your repository and prune old objects. do you have a lot of binary files (archives, images, executables) which change often? those usually lead to hug...
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Set operations (union, intersection) on Swift array?

Are there any standard library calls I can use to either perform set operations on two arrays, or implement such logic myself (ideally as functionally and also efficiently as possible)? ...
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How do I access named capturing groups in a .NET Regex?

... and execute, and in that answer it could have been constructed just once (calling Regex.IsMatch was just constructing the regex again behind the scene). And Match method could have been called only once and stored in a variable and then linkand name should call Result from that variable. And the I...
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Passing arguments to require (when loading module)

... @floatingLomas The serialization mechanism in python is called pickle: stackoverflow.com/questions/11218477/… – SadSeven Jul 19 '16 at 11:10 1 ...
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What is the difference between URI, URL and URN? [duplicate]

...ld-wide telephone network due to its unique telephone number and route the call appropriately (+1 for the USA, 816 for Missouri, etc.). – Stefan Gehrig Feb 6 '11 at 13:07 ...
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What is the difference between Server.MapPath and HostingEnvironment.MapPath?

... Server.MapPath() eventually calls HostingEnvironment.MapPath(), but it creates a VirtualPath object with specific options: The VirtualPath object passed to HostingEnvironment.MapPath() is constructed like this: VirtualPath.Create(path, VirtualPathO...
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What is __gxx_personality_v0 for?

...ned on that answer, its use is defined by the Itanium C++ ABI, where it is called the Personality Routine. The reason it "works" by defining it as a global NULL void pointer is probably because nothing is throwing an exception. When something tries to throw an exception, then you will see it misbeh...
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Understanding MongoDB BSON Document size limit

... (or files) larger than 16MB you can use the GridFS API which will automatically break up the data into segments and stream them back to you (thus avoiding the issue with size limits/RAM.) Instead of storing a file in a single document, GridFS divides the file into parts, or chunks, and stores ...