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Permutations in JavaScript?
I'm trying to write a function that does the following:
35 Answers
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In Functional Programming, what is a functor?
I've come across the term 'Functor' a few times while reading various articles on functional programming, but the authors typically assume the reader already understands the term. Looking around on the web has provided either excessively technical descriptions (see the Wikipedia article ) or incred...
How to check if a file is empty in Bash?
I have a file called diff.txt. Want to check if it is empty. Did something like this but couldn't get it working.
10 Answe...
php is null or empty?
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What you're looking for is:
if($variable === NULL) {...}
Note the ===.
When use ==, as you did, PHP treats NULL, false, 0, the empty string, and empty arrays as equal.
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How to delete multiple files at once in Bash on Linux?
I have this list of files on a Linux server:
7 Answers
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How to find the most recent file in a directory using .NET, and without looping?
I need to find the most recently modified file in a directory.
11 Answers
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ls command: how can I get a recursive full-path listing, one line per file?
How can I get ls to spit out a flat list of recursive one-per-line paths?
24 Answers
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How do you specify a byte literal in Java?
If I have a method
6 Answers
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Why are side-effects modeled as monads in Haskell?
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Suppose a function has side effects. If we take all the effects it produces as the input and output parameters, then the function is pure to the outside world.
So, for an impure function
f' :: Int -> Int
we add the RealWorld to the...
Is a GUID unique 100% of the time?
Is a GUID unique 100% of the time?
22 Answers
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