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What does the 'static' keyword do in a class?
...n the example given, main does not know which instance of the Hello class (and therefore which instance of the Clock class) it should refer to. static members can only refer to static members. Instance members can, of course access static members.
Side note: Of course, static members can access ins...
What is the best (idiomatic) way to check the type of a Python variable? [duplicate]
...scussion. What are its advantages? Can we see some example code, to understand how it compares? The ABC PEP link is rather heavy with theory and quite a lot to consume when the goal is to simply test if something is a dict or string. Is there additional effort to implement ABCs, and (especially for ...
Nested Git repositories?
... As a relative git beginner, I found this blog/tutorial easier to understand chrisjean.com/2009/04/20/… It takes a simpler approach by focusing on just git instead of having the context of a helper shell script; I found it easier to read.
– John K
May 16 '1...
How to unescape HTML character entities in Java?
Basically I would like to decode a given Html document, and replace all special chars, such as " " -> " " , ">" -> ">" .
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Convert Pixels to Points
...out the topic, but can't seem to locate a simple formula. Let's assume a standard 96dpi, how do I calulate this conversion?
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Should arrays be used in C++?
Since std::list and std::vector exist, is there a reason to use traditional C arrays in C++, or should they be avoided, just like malloc ?
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C# Lambda expressions: Why should I use them?
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Lambda expressions are a simpler syntax for anonymous delegates and can be used everywhere an anonymous delegate can be used. However, the opposite is not true; lambda expressions can be converted to expression trees which allows for a lot of the magic like LINQ to SQL.
The following ...
Setting a system environment variable from a Windows batch file?
...s it possible to set a environment variable at the system level from a command prompt in Windows 7 (or even XP for that matter). I am running from an elevated command prompt.
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How to write asynchronous functions for Node.js
... non-blocking IO because non blocking IO is better. The best way to understand it is to go watch some videos by ryan dahl.
How do I write asynchronous functions for Node?
Just write normal functions, the only difference is that they are not executed immediately but passed around as callbacks.
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How can I search Git branches for a file or directory?
...hell) so the shell passes the glob pattern to git unchanged, instead of expanding it (just like with Unix find).
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