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Static methods in Python?
...vanced concept, see classmethod().
For more information on static methods, consult the documentation on the standard type hierarchy in The standard type hierarchy.
New in version 2.2.
Changed in version 2.4: Function decorator syntax added.
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What does the `forall` keyword in Haskell/GHC do?
...eory or abstract algebra is popular this week. (If I never read the words "consult the paper whatever for details of implementation" again, it will be too soon.)
Er, and what about simple first-order logic? forall is pretty clearly in reference to universal quantification, and in that context the ...
When to use references vs. pointers
...fore that, there's boost::optional).
Another example is to use pointers to raw memory for specific memory manipulations. That should be hidden and localized in very narrow parts of the code, to help limit the dangerous parts of the whole code base.
In your example, there is no point in using a point...
How to download an entire directory and subdirectories using wget?
...t -r --no-parent http://abc.tamu.edu/projects/tzivi/repository/revisions/2/raw/tzivi/
The Parameters are:
-r //recursive Download
and
--no-parent // Don´t download something from the parent directory
If you don't want to download the entire content, you may use:
-l1 just download t...
Bash: Syntax error: redirection unexpected
...lem from my Dockerfile as I had:
RUN bash < <(curl -s -S -L https://raw.githubusercontent.com/moovweb/gvm/master/binscripts/gvm-installer)
However, according to this issue, it was solved:
The exec form makes it possible to avoid shell string munging, and
to RUN commands using a base ...
Is double square brackets [[ ]] preferable over single square brackets [ ] in Bash?
...tive. I'm not an expert in shell scripting, I am looking for a guide I can consult for writing a script about once every half year.
– Thomas
Oct 14 '14 at 7:30
9
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Fastest way to convert Image to Byte array
...about CPU resources, pick a format which doesn't bother compressing - just raw ARGB pixels, for example. But of course that will lead to a larger byte array.
Note that if you pick a format which does include compression, there's no point in then compressing the byte array afterwards - it's almost c...
std::shared_ptr of this
...g. Usually, when you are accepting new entities, you should usually accept raw pointers. Smart pointer can have their own meaning for swapping children between parents, but for general usage, you should accept raw pointers.
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jQuery remove all list items from an unordered list
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raw js (no jQuery) solution: stackoverflow.com/questions/10750137/remove-all-li-from-ul
– Eido95
Feb 17 '16 at 20:34
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How do I retrieve the number of columns in a Pandas data frame?
...re using read_csv method of Pandas without sep parameter or sep with ",".
raw_data = pd.read_csv("a1:\aa2/aaa3/data.csv")
raw_data.info()
<class 'pandas.core.frame.DataFrame'>
RangeIndex: 5144 entries, 0 to 5143
Columns: 145 entries, R_fighter to R_age
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