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Avoiding instanceof in Java
... "code smell". The standard answer is "use polymorphism". How would I do it in this case?
9 Answers
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Why #define TRUE (1==1) in a C boolean macro instead of simply as 1?
I've seen definitions in C
8 Answers
8
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How can I use a DLL file from Python?
What is the easiest way to use a DLL file from within Python ?
7 Answers
7
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How do I push a new local branch to a remote Git repository and track it too?
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In Git 1.7.0 and later, you can checkout a new branch:
git checkout -b <branch>
Edit files, add and commit. Then push with the -u (short for --set-upstream) option:
git push -u origin <branch>
Git will set up th...
How to handle dependency injection in a WPF/MVVM application
I am starting a new desktop application and I want to build it using MVVM and WPF.
9 Answers
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How to use JavaScript source maps (.map files)?
Recently I have seen files with .js.map extension shipped with some JavaScript libraries (like Angular ), and that just raised few questions in my head:
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A std::map that keep track of the order of insertion?
... stores an integer value to an unique string identifier, and I do look up with the string. It does mostly what I want, except for that it does not keep track of the insertion order. So when I iterate the the map to print out the values, they are sorted according to the string; but I want them to be ...
What's the difference between Cache-Control: max-age=0 and no-cache?
...ed...
There are two sides to the Cache-Control header. One side is where it can be sent by the web server (aka. "origin server"). The other side is where it can be sent by the browser (aka. "user agent").
When sent by the origin server
I believe max-age=0 simply tells caches (and user agents)...
Moving average or running mean
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For a short, fast solution that does the whole thing in one loop, without dependencies, the code below works great.
mylist = [1, 2, 3, 4, 5, 6, 7]
N = 3
cumsum, moving_aves = [0], []
for i, x in enumerate(mylist, 1):
cumsum.append(cumsum[i-1] + x)
if i>=N:
moving_ave = (...
“Delegate subtraction has unpredictable result” in ReSharper/C#?
...delegate was removed. An event doesn't guarantee an order of execution for its subscribers, so it doesn't really affect you either.
Since the above mechanics can lead to unpredictable results, ReSharper issues a warning whenever it encounters a delegate subtraction operator.
ReSharper is issui...