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JSP tricks to make templating easier?
...g like template inheritance ( Django style) or at least be able to have a base.jsp file containing the header and the footer, so I can insert content later.
...
How do iOS Push Notifications work?
...ples, see Registering to Receive Remote Notifications.
To establish HTTP/2-based TLS sessions with APNs, you must ensure that a GeoTrust Global CA root certificate is installed on each of your providers. If a provider is running macOS, this root certificate is in the keychain by default. On other sy...
Difference between shadowing and overriding in C#?
...shadow
Console.WriteLine(((A)clB).Bar()); // output 1
Suppose you have a base class and you use the base class in all your code instead of the inherited classes, and you use shadow, it will return the values the base class returns instead of following the inheritance tree of the real type of the o...
How to get the Power of some Integer in Swift language?
...tric cryptography."
// using Swift 5.0
func pow<T: BinaryInteger>(_ base: T, _ power: T) -> T {
func expBySq(_ y: T, _ x: T, _ n: T) -> T {
precondition(n >= 0)
if n == 0 {
return y
} else if n == 1 {
return y * x
} else if ...
Representing and solving a maze given an image
...thon mazesolver.py <mazefile> <outputfile>[.jpg|.png|etc.]
base_img = Image.open(sys.argv[1])
base_pixels = base_img.load()
path = BFS(start, end, base_pixels)
path_img = Image.open(sys.argv[1])
path_pixels = path_img.load()
for position in path:
x,y = ...
What's the fundamental difference between MFC and ATL?
...ing between those teams. Eventually those controls would make it into the base operating system in service packs or the next Windows version. This pattern continued with the Office Ribbon which was added into Windows as an add-on component well after Office shipped, and is now part of the Windows ...
Select the values of one property on all objects of an array in PowerShell
...ions; it is a faster - all-in-memory-at-once - alternative to the pipeline-based ForEach-Object cmdlet (%).
Comparing the performance of the various approaches
Here are sample timings for the various approaches, based on an input collection of 10,000 objects, averaged across 10 runs; the absolute...
Why should I prefer to use member initialization lists?
...
Initialization of base class
One important reason for using constructor initializer list which is not mentioned in answers here is initialization of base class.
As per the order of construction, base class should be constructed before child...
Fixed size queue which automatically dequeues old values upon new enques
... Size = size;
}
public new void Enqueue(T obj)
{
base.Enqueue(obj);
lock (syncObject)
{
while (base.Count > Size)
{
T outObj;
base.TryDequeue(out outObj);
}
}
}
}
...
What is a mixin, and why are they useful?
...m. I can make a plain old request object by saying:
from werkzeug import BaseRequest
class Request(BaseRequest):
pass
If I want to add accept header support, I would make that
from werkzeug import BaseRequest, AcceptMixin
class Request(AcceptMixin, BaseRequest):
pass
If I wanted to ...