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Is there XNOR (Logical biconditional) operator in C#?
...anguages where it won't necessarily work. For example, in C, any non-zero scalar value is treated as true, so two "true" values can be unequal. But the question was tagged c#, which has, shall we say, well-behaved booleans.
Note also that this doesn't generalize to bitwise operations, where you wa...
How to convert JSON to a Ruby hash
...ive for larger hash objects? I'm new to Ruby/Rails, but assuming this duplicates key-value pairs?
– Jonathan
Apr 9 '18 at 11:52
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Redirect stdout pipe of child process in Go
...s prints the stdout only after the process has exited. (That's a problem because this server-like program runs for a long time and I want to read the log output)
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What is ASP.NET Identity's IUserSecurityStampStore interface?
Looking at ASP.NET Identity (new membership implementation in ASP.NET), I came across this interface when implementing my own UserStore :
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std::back_inserter for a std::set?
...
set doesn't have push_back because the position of an element is determined by the comparator of the set. Use std::inserter and pass it .begin():
std::set<int> s1, s2;
s1 = getAnExcitingSet();
transform(s1.begin(), s1.end(),
std::insert...
ApartmentState for dummies
...mpletely skips is providing threading guarantees for a class. A COM class can publish what kind of threading requirements it has. And the COM infrastructure makes sure those requirements are met.
This is completely absent in .NET. You can use a Queue<> object for example in multiple thread...
how to generate migration to make references polymorphic
...I'm not mistaken, you do need to add them yourselves if you need them. You can just add indexes as normal in the migration file to imageable_type and/or imageable_id as necessary.
– Michelle Tilley
Apr 20 '14 at 18:23
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WebSocket with SSL
...th an HTTP or HTTPS handshake. When the page is accessed through HTTP, you can use WS or WSS (WebSocket secure: WS over TLS) . However, when your page is loaded through HTTPS, you can only use WSS - browsers don't allow to "downgrade" security.
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Python using enumerate inside list comprehension
...o work. Alternatively, given that enumerate() already returns a tuple, you can return it directly without unpacking it first:
[pair for pair in enumerate(mylist)]
Either way, the result that gets returned is as expected:
> [(0, 'a'), (1, 'b'), (2, 'c'), (3, 'd')]
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What does the arrow operator, '->', do in Java?
While hunting through some code I came across the arrow operator, what exactly does it do? I thought Java did not have an arrow operator.
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