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Use of 'prototype' vs. 'this' in JavaScript?
...e [[Prototype]] property.
A function's this is set by how the function is called or by the use of bind (not discussed here). Where a function is called on an object (e.g. myObj.method()) then this within the method references the object. Where this is not set by the call or by the use of bind, it de...
Is it possible to make abstract classes in Python?
...nitions of those methods:
>>> Abstract()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: Can't instantiate abstract class Abstract with abstract methods foo
>>> class StillAbstract(Abstract):
... pass
...
>>> StillAbstr...
Which, if any, C++ compilers do tail-recursion optimization?
...
All current mainstream compilers perform tail call optimisation fairly well (and have done for more than a decade), even for mutually recursive calls such as:
int bar(int, int);
int foo(int n, int acc) {
return (n == 0)...
What is the best way to force yourself to master vi? [closed]
...
First of all, you may want to pick up Vim; it has a vastly superior feature set along with everything vi has.
That said, it takes discipline to learn. If you have a job and can't afford the productivity hit (without getting fired), I...
Force HTML5 youtube video
...t;</iframe>
The video will be displayed as HTML5 if available, or fallback into flash player.
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Manual deployment vs. Amazon Elastic Beanstalk
What are the advantages we get by using Elastic Beanstalk over maually creating EC2 instance and setting up tomcat server and deploy etc for a typical java web applicaion. Are load balancing, Monitoring and autoscaling the only advantages?
...
Creating a singleton in Python
...mple implementation:
class Singleton(type):
_instances = {}
def __call__(cls, *args, **kwargs):
if cls not in cls._instances:
cls._instances[cls] = super(Singleton, cls).__call__(*args, **kwargs)
return cls._instances[cls]
class Logger(object):
__meta...
How to “perfectly” override a dict?
...or other builtins) directly. It often makes no sense, because what you actually want to do is implement the interface of a dict. And that is exactly what ABCs are for.
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What is the basic difference between the Factory and Abstract Factory Design Patterns? [closed]
...y pattern, you provide a way for anyone to provide their own factory. This allows your warehouse to be either an IFruitFactory or an IJuiceFactory, without requiring your warehouse to know anything about fruits or juices.
sh...
cmake and libpthread
...s/FindThreads.cmake (eg. see here apt-browse.org/browse/ubuntu/trusty/main/all/cmake-data/…) Basically, THREADS_HAVE_PTHREAD_ARG is only set if the other variations of the flag weren't found (ie. -lpthread, -lpthread, or -lthread)
– j1elo
Jul 2 '17 at 14:16
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