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Are HLists nothing more than a convoluted way of writing tuples?
.... shapeless provides a form of polymorphic function value which allows the compiler to select type-specific cases in exactly the way you're doubtful about. For instance,
// size is a function from values of arbitrary type to a 'size' which is
// defined via type specific cases
object size extends P...
Convert Dictionary to semicolon separated string in c#
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Edited according to comments.
– the_drow
Oct 6 '10 at 11:18
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Numpy array assignment with copy
... B = A[:] would do something more like 1 ? According to this stackoverflow.com/a/2612815 new_list = old_list[:] is also a copy.
– mrgloom
May 23 '18 at 12:13
4
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How do I get the name of captured groups in a C# Regex?
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Where did the name `atoi` come from?
In the C language where did they come up with the name atoi for converting a string to an integer? The only thing I can think of is Array To Integer for an acronym but that doesn't really make sense.
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Why use Dijkstra's Algorithm if Breadth First Search (BFS) can do the same thing faster?
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See the accepted answer, second comment. Very nice way of explaining why the computational complexity is different: stackoverflow.com/questions/25449781/…
– jmcarter9t
Sep 23 '17 at 0:42
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How to use redis PUBLISH/SUBSCRIBE with nodejs to notify clients when data values change?
...st-install
curl http://nodejs.org/dist/node-latest.tar.gz | tar xz --strip-components=1
./configure --prefix=~/local
make install # ok, fine, this step probably takes more than 30 seconds...
curl http://npmjs.org/install.sh | sh
Install dependencies
After you installed node+npm you should install...
Is it possible to have empty RequestParam values use the defaultValue?
...you expect to receive requests where it isn't set at all:
http://example.com/test
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Getting HTTP code in PHP using curl
...check if a URL exists via PHP?
As a whole:
$url = 'http://www.example.com';
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_HEADER, true); // we want headers
curl_setopt($ch, CURLOPT_NOBODY, true); // we don't need body
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch, CURLOPT_...
Python: Using .format() on a Unicode-escaped string
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