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If my interface must return Task what is the best way to have a no-operation implementation?
...e below, due to the interface, the class LazyBar must return a task from its method (and for argument's sake can't be changed). If LazyBar s implementation is unusual in that it happens to run quickly and synchronously - what is the best way to return a No-Operation task from the method?
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What are the most common SQL anti-patterns? [closed]
All of us who work with relational databases have learned (or are learning) that SQL is different. Eliciting the desired results, and doing so efficiently, involves a tedious process partly characterized by learning unfamiliar paradigms, and finding out that some of our most familiar programming p...
Hibernate - A collection with cascade=”all-delete-orphan” was no longer referenced by the owning ent
I'm having the following issue when trying to update my entity:
23 Answers
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Difference between char* and const char*?
...const char * to char* is deprecated.
char* const is an immutable pointer (it cannot point to any other location) but the contents of location at which it points are mutable.
const char* const is an immutable pointer to an immutable character/string.
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How to detect internet speed in JavaScript?
...te a JavaScript page that will detect the user’s internet speed and show it on the page? Something like “your internet speed is ??/?? Kb/s” .
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What is the meaning of id?
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id is a pointer to any type, but unlike void * it always points to an Objective-C object. For example, you can add anything of type id to an NSArray, but those objects must respond to retain and release.
The compiler is totally happy for you to implicitly cast any object...
System.IO.Packaging
...ve my project set to .NET Framework 4.0. When I add System.IO.Packaging , it says that it doesn't exist. It also doesn't show up when I try to add it as a reference to the project.
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The name 'ConfigurationManager' does not exist in the current context
...+ C#. I have added System.Configuration to reference and also mentioned with using. But still it wouldn't accept the assembly.
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Why does typeof NaN return 'number'?
Just out of curiosity.
21 Answers
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How does functools partial do what it does?
...unction (a callable, to be precise) that behaves like sum2, but has one positional argument less. That missing argument is always substituted by 4, so that partial(sum2, 4)(2) == sum2(4, 2)
As for why it's needed, there's a variety of cases. Just for one, suppose you have to pass a function somewhe...