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Type-juggling and (strict) greater/lesser-than comparisons in PHP
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PHP's comparison operators deviate from the computer-scientific definitions in several ways:
In order to constitute an equivalence relation == has to be reflexive, symmetric and transitive:
PHP's == operator is not reflexive, i.e. $a == $a is not always tru...
How to trace the path in a Breadth-First Search?
...ue
queue.append([start])
while queue:
# get the first path from the queue
path = queue.pop(0)
# get the last node from the path
node = path[-1]
# path found
if node == end:
return path
# enumerate all adjacent nodes, constru...
List all of the possible goals in Maven 2?
I'm new to Maven, coming from the Ant world.
5 Answers
5
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Calling a base class's classmethod in Python
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If you're using a new-style class (i.e. derives from object in Python 2, or always in Python 3), you can do it with super() like this:
super(Derived, cls).do(a)
This is how you would invoke the code in the base class's version of the method (i.e. print cls, a), from the...
Socket.IO - how do I get a list of connected sockets/clients?
....sockets.clients();
var clients = io.sockets.clients('room'); // all users from room `room`
For a namespace
var clients = io.of('/chat').clients();
var clients = io.of('/chat').clients('room'); // all users from room `room`
Hopes this helps someone in the future
NOTE: This Solution ONLY wor...
How to return a file using Web API?
I am using ASP.NET Web API . I want to download a PDF with C# from the API (that the API generates).
5 Answers
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Where can I learn how to write C code to speed up slow R functions? [closed]
...y efficient) C code one can study, and CRAN has hundreds of packages, some from authors you trust. That provides real, tested examples to study and adapt.
But as Josh suspected, I lean more towards C++ and hence Rcpp. It also has plenty of examples.
Edit: There were two books I found helpful:
T...
javax vs java package
...y as a library to work with earlier versions (which would be useful). Note from many years later: it actually ended up being in java after all.
I believe there are restrictions on the java package - I think classloaders are set up to only allow classes within java.* to be loaded from rt.jar or some...
How to get the value from the GET parameters?
...wsers (including Internet Explorer), you can use this polyfill or the code from the original version of this answer that predates URL:
You could access location.search, which would give you from the ? character on to the end of the URL or the start of the fragment identifier (#foo), whichever comes...
Convert from enum ordinal to enum type
...inal value must be sent how an argument and return the Suit representation from Suit values[]. The point here (question's tile from the beginning) was create an enum type from an enum ordinal
– Manuel Jordan
Jul 23 '19 at 17:57
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