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Equivalent to 'app.config' for a library (DLL)

... You can have separate configuration file, but you'll have to read it "manually", the ConfigurationManager.AppSettings["key"] will read only the config of the running assembly. Assuming you're using Visual Studio as your IDE, you can right click the desired project → Add → New item → Applicat...
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Apply .gitignore on an existing repository already tracking large number of files

... This answer solved my problem: First of all, commit all pending changes. Then run this command: git rm -r --cached . This removes everything from the index, then just run: git add . Commit it: git commit -m ".gitignore is now working" ...
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How do I pass parameters into a PHP script through a webpage?

I am calling a PHP script whenever a webpage loads. However, there is a parameter that the PHP script needs to run (which I normally pass through the command line when I am testing the script). ...
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Check if PHP session has already started

I have a PHP file that is sometimes called from a page that has started a session and sometimes from a page that doesn't have session started. Therefore when I have session_start() on this script I sometimes get the error message for "session already started". For that I've put these lines: ...
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How to make good reproducible pandas examples

...s. Disclaimer: Writing a good question is HARD. The Good: do include small* example DataFrame, either as runnable code: In [1]: df = pd.DataFrame([[1, 2], [1, 3], [4, 6]], columns=['A', 'B']) or make it "copy and pasteable" using pd.read_clipboard(sep='\s\s+'), you can format the text for Sta...
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retrieve links from web page using python and BeautifulSoup [closed]

...ref'): print(link['href']) The BeautifulSoup documentation is actually quite good, and covers a number of typical scenarios: https://www.crummy.com/software/BeautifulSoup/bs4/doc/ Edit: Note that I used the SoupStrainer class because it's a bit more efficient (memory and speed wise), if you...
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How to detect if app is being built for device or simulator in Swift

... ... #endif After Swift 4.1 version Latest use, now directly for all in one condition for all types of simulators need to apply only one condition - #if targetEnvironment(simulator) // your simulator code #else // your real device code #endif For more clarification, you can check S...
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difference between foldLeft and reduceLeft in Scala

...e between reducing and folding The difference is not the implementation at all, just look at the signatures. The question doesn't have anything to do with Scala in particular, it's rather about the two concepts of functional programming. Back to your question: Here is the signature of foldLeft (c...
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What's the need of array with zero elements?

... This is a way to have variable sizes of data, without having to call malloc (kmalloc in this case) twice. You would use it like this: struct bts_action *var = kmalloc(sizeof(*var) + extra, GFP_KERNEL); This used to be not standard and was considered a hack (as Aniket said), but it was s...
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Execute code when Django starts ONCE only?

... entirely a separate problem. The idea of special one-time startup before all management commands is hard to understand. You'll have to provide something specific. Perhaps in another question. – S.Lott Feb 13 '12 at 12:49 ...