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C# namespace alias - what's the point?
...ith extern aliases for using types with the same fully-qualified type name from different assemblies - rare, but useful to be supported.
Actually, I can see another use: when you want quick access to a type, but don't want to use a regular using because you can't import some conflicting extension...
What is the attribute property=“og:title” inside meta tag?
...ty in meta tags allows you to specify values to property fields which come from a property library. The property library (RDFa format) is specified in the head tag.
For example, to use that code you would have to have something like this in your <head tag. <head xmlns:og="http://example.org/"...
Can we make unsigned byte in Java
...is unsigned".
As primitives are signed the Java compiler will prevent you from assigning a value higher than +127 to a byte (or lower than -128). However, there's nothing to stop you downcasting an int (or short) in order to achieve this:
int i = 200; // 0000 0000 0000 0000 0000 0000 1100 1000 (20...
Deep null checking, is there a better way?
...
@John: We get this feature request almost entirely from our most experienced programmers. The MVPs ask for this all the time. But I understand that opinions vary; if you'd like to give a constructive language design suggestion in addition to your criticism, I'm happy to consi...
Why does “return list.sort()” return None, not the list?
...ntjenks/python-sortedcontainers In my, was already thinking of refactoring from a list to a set, since I didn't want duplicates, and was then looking for a SortedSet implementation, and didn't find one in collections module... Source: stackoverflow.com/questions/5953205/…
– J...
Why is __init__() always called after __new__()?
...ou're
subclassing an immutable type like
str, int, unicode or tuple.
From April 2008 post: When to use __new__ vs. __init__? on mail.python.org.
You should consider that what you are trying to do is usually done with a Factory and that's the best way to do it. Using __new__ is not a good clea...
Are tuples more efficient than lists in Python?
...
Although the suggestion you can conclude anything from counting ops is misguided, this does show the key difference: constant tuples are stored as such in the bytecode and just referenced when used, whereas lists need to be built at runtime.
– poolie
...
Check if a value is an object in JavaScript
...er all there's no recipe at all!) for checking whether it's an object, far from it. Since people tend to look for something to copy from here without doing any research, I'd highly recommend that they turn to the other, most upvoted (and correct!) answer.
...
How to identify platform/compiler from preprocessor macros?
...tackoverflow.com%2fquestions%2f4605842%2fhow-to-identify-platform-compiler-from-preprocessor-macros%23new-answer', 'question_page');
Applicatives compose, monads don't
...lies essentially on the extra power of (>>=) to choose a computation from a value, and that can be important. However, supporting that power makes monads hard to compose. If we try to build ‘double-bind’
(>>>>==) :: (Monad m, Monad n) => m (n s) -> (s -> m (n t)) ->...