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What is the advantage of using forwarding references in range-based for loops?
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Using auto&& or universal references with a range-based for-loop has the advantage that you captures what you get. For most kinds of iterators you'll probably get either a T& or a T const& for some type T. The interesting case is where dereferencing an iterator yield...
Is there any way to close a StreamWriter without closing its BaseStream?
...at when using calls Dispose on a StreamWriter , it also disposes the BaseStream (same problem with Close ).
5 Answe...
How can I calculate the number of lines changed between two commits in git?
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@jgmjgm, try using git merge-base as part of your command. You probably just have a newer master branch than what your feature_branch was originally based on, is all, so you need to do git diff against the old base upon which your feature branch was base...
(this == null) in C#!
...such method, and even comparing this to null is valid. The error is in the base init line: it is the attempt to pass instance-bounded delegate as a parameter to the base ctor. This is the bug (a hole in sematic checks) in the compiler: it should NOT be possible. You are not allowed to write : base(C...
Which way is best for creating an object in JavaScript? Is `var` necessary before an object property
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There is various way to define a function. It is totally based upon your requirement. Below are the few styles :-
Object Constructor
Literal constructor
Function Based
Protoype Based
Function and Prototype Based
Singleton Based
Examples:
Object constructor
var person = ne...
How can you program if you're blind?
...e student who’s had several programming internships so my answer will be based off these. I use windows xp as my operating system and Jaws to read what appears on the screen to me in synthetic speech. For java programming I use eclipse, since it’s a fully featured IDE that is accessible.
In my...
How do you express binary literals in Python?
...nteger in most cases) - just pass int the string of zeros and ones and the base you are converting from (2):
>>> int('010101', 2)
21
You can optionally have the 0b or 0B prefix:
>>> int('0b0010101010', 2)
170
If you pass it 0 as the base, it will assume base 10 if the string ...
Difference between web reference and service reference?
...rs indicate that it is only ASMX, but Web References can also talk to Java-based Web Services or Python-based or Ruby so long as they all talk WSDL and conform to the WS-I interoperability standard).
A Service Reference will create a client proxy class that communicates with a WCF-based service : r...
Python: Why is functools.partial necessary?
.....:
>>> import functools
>>> f = functools.partial(int, base=2)
>>> f.args
()
>>> f.func
<type 'int'>
>>> f.keywords
{'base': 2}
>>>
functools.partial's returned function is decorated with attributes useful for introspection -- the func...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...ts Avenue, Cambridge, MA 02139, USA
ABSTRACT
MIT App Inventor is a block-based event-driven programming tool that allows everyone, especially novices, to start programming and building fully functional apps for Android devices. Compared to traditional text programming with Android Studio, it has l...