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PHP's array_map including keys

Is there a way of doing something like this: 18 Answers 18 ...
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What's the difference between globals(), locals(), and vars()?

What is the difference between globals() , locals() , and vars() ? What do they return? Are updates to the results useful? ...
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return statement vs exit() in main()

... statements because I feel it's like reading any other function and the flow control when I'm reading the code is smooth (in my opinion). And even if I want to refactor the main() function, having return seems like a better choice than exit() . ...
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Multiprocessing: How to use Pool.map on a function defined in a class?

... I also was annoyed by restrictions on what sort of functions pool.map could accept. I wrote the following to circumvent this. It appears to work, even for recursive use of parmap. from multiprocessing import Process, Pipe from itertools import izip def spawn(f): def fu...
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What does the `forall` keyword in Haskell/GHC do?

I'm beginning to understand how the forall keyword is used in so-called "existential types" like this: 8 Answers ...
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What is java interface equivalent in Ruby?

Can we expose interfaces in Ruby like we do in java and enforce the Ruby modules or classes to implement the methods defined by interface. ...
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How can I profile C++ code running on Linux?

I have a C++ application, running on Linux, which I'm in the process of optimizing. How can I pinpoint which areas of my code are running slowly? ...
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Why are functions in Ocaml/F# not recursive by default?

Why is it that functions in F# and Ocaml (and possibly other languages) are not by default recursive? 6 Answers ...
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What is the formal difference in Scala between braces and parentheses, and when should they be used?

What is the formal difference between passing arguments to functions in parentheses () and in braces {} ? 9 Answers ...
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Delete files older than 3 months old in a directory using .NET

I would like to know (using C#) how I can delete files in a certain directory older than 3 months, but I guess the date period could be flexible. ...