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How does this giant regex work?
...e nicely done. Basically, it lists all the files in the current directory, and it lets you change directories.
4 Answers
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Converting a Uniform Distribution to a Normal Distribution
How can I convert a uniform distribution (as most random number generators produce, e.g. between 0.0 and 1.0) into a normal distribution? What if I want a mean and standard deviation of my choosing?
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JSON datetime between Python and JavaScript
...end a datetime.datetime object in serialized form from Python using JSON and de-serialize in JavaScript using JSON. What is the best way to do this?
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How to get thread id from a thread pool?
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@petrbel He's answering the question title perfectly, and the thread id is close enough in my opinion when the OP requests "something like 'thread #3 of 5".
– CorayThan
Sep 1 '15 at 19:20
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Does Haskell require a garbage collector?
...ser types "clear"; so the lifetime of this must be determined dynamically, and this is why dynamic memory management is necessary.
So in this sense, automated dynamic memory allocation is necessary, and in practice this means: yes, Haskell requires a garbage collector, since garbage collection is t...
Define preprocessor macro through CMake?
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For a long time, CMake had the add_definitions command for this purpose. However, recently the command has been superseded by a more fine grained approach (separate commands for compile definitions, include directories, and compiler options).
An example using the new add_com...
how do you filter pandas dataframes by multiple columns
... filter a dataframe (df) by a single column, if we consider data with male and females we might:
6 Answers
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How can I find the first occurrence of a sub-string in a python string?
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@Regressor: look into regex and word boundaries.
– mechanical_meat
Apr 12 at 23:29
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Why do x86-64 systems have only a 48 bit virtual address space?
...st only use the lower 48 bits. The alternative was wasting transistors on handling a bigger address space which wasn't going to be needed for many years.
So once we get near the 48-bit limit, it's just a matter of releasing CPUs that handle the full address space, but it won't require any changes t...
How to change line-ending settings
...lf"
If you want to know what file this is saved in, you can run the command:
git config --global --edit
and the git global config file should open in a text editor, and you can see where that file was loaded from.
shar...