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Nullable type as a generic parameter possible?
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This is fine for value types, but then I think it won't work at all with reference types (e.g. GetValueOrNull<string>) because C# doesn't seem to like Nullable<(ref type)> like "string?". Robert C Barth & James Jones's solutions, below, seem m...
Writing a pandas DataFrame to CSV file
...rame does not have an index (IOW, the df.index is the default RangeIndex), then you will want to set index=False when writing. To explain this in a different way, if your data DOES have an index, you can (and should) use index=True or just leave it out completely (as the default is True).
It would b...
Does C++ support 'finally' blocks? (And what's this 'RAII' I keep hearing about?)
...implementer) of the object. I would argue this is the correct place as you then only need to get exception safety correct once (in the design/implementation). By using finally you need to get exception safety correct every time you use an object.
Also IMO the code looks neater (see below).
Example...
Why must jUnit's fixtureSetup be static?
... for the @BeforeClass/@AfterClass methods to reference instance variables, then only one of the @Test methods would have access to those same instance variables - the rest would have the instance variables at their default values - and the @Test method would be randomly selected, because the order o...
When should I use RequestFactory vs GWT-RPC?
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It is annoying, but if you have to create proxies anyway, then you'd rather have the extra help that RF gives you for managing those proxies. Not everybody wants to send the entire pojo to the client - for example, consider a poker game - your Player object might have information t...
Java volatile reference vs. AtomicReference
...ics. So, first decide if you want CAS semantics or not, and if you do only then use AtomicReference.
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Can two Java methods have same name with different return types? [duplicate]
...methods has different parameter types (so, they have different signature), then it is possible. It is called overloading.
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How do I create a category in Xcode 6 or higher?
...ective-C File.
Type in category name, select File Type: Category, and then select the base class.
Complete the flow to create the category.
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Is there a .NET equivalent to Apache Hadoop? [closed]
...s a product company). And if we tried to rely on GPL'ed software component then we automatically need to distribute our sources as well, it's not LGPL where including a library in closed-source project is OK :(
– IgorK
Aug 15 '11 at 16:51
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When should I use C++14 automatic return type deduction?
... @andreee: that's true within limits. If a type has many aliases then knowing the actual type isn't always as useful as you'd hope. For instance an iterator type might be int*, but what's actually significant, if anything, is that the reason it's int* is because that's what std::vector<...