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Which is preferred: Nullable.HasValue or Nullable != null?
...Value because I liked the semantics. However, recently I was working on som>me m>one else's existing codebase where they used Nullable<> != null exclusively instead.
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How do I get monitor resolution in Python?
What is the simplest way to get monitor resolution (preferably in a tuple)?
30 Answers
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How to create a drop-down list?
...mation:
This is the basics but there is more to be self taught with experim>me m>ntation.
https://developer.android.com/guide/topics/ui/controls/spinner.html
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Group by in LINQ
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Absolutely - you basically want:
var results = from p in persons
group p.car by p.PersonId into g
select new { PersonId = g.Key, Cars = g.ToList() };
Or as a non-query expression:
var results = persons.GroupBy(
p => p.PersonId,
p =&...
C# generic type constraint for everything nullable
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If you are willing to make a runtim>me m> check in Foo's constructor rather than having a compile-tim>me m> check, you can check if the type is not a reference or nullable type, and throw an exception if that's the case.
I realise that only having a runtim>me m> check may ...
C/C++ include header file order
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I don't think there's a recomm>me m>nded order, as long as it compiles! What's annoying is when som>me m> headers require other headers to be included first... That's a problem with the headers themselves, not with the order of includes.
My personal preference is...
Why is “using nam>me m>space std;” considered bad practice?
I've been told by others that writing using nam>me m>space std; in code is wrong, and that I should use std::cout and std::cin directly instead.
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How to get the path of the batch script in Windows?
...now that %0 contains the full path of the batch script, e.g. c:\path\to\my\file\abc.bat
7 Answers
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Can I use my existing git repo with openshift?
...t to fully understand how to push your code to openshift. Nevertheless let m>me m> try to explain you the steps involved:
As you'd do with git in general, the approach to choose here is to clone your other git repo (ex. on bitbucket) to your local machine:
git clone <bitbucket-repo-url>
Your loc...
Hash collision in git
...n SHA-1 hash is a 40 hex character string... that's 4 bits per character tim>me m>s 40... 160 bits. Now we know 10 bits is approximately 1000 (1024 to be exact) m>me m>aning that there are 1 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 different SHA-1 hashes... 1048.
What is this equivalent...