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Nullable type as a generic parameter possible?
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Change the return type to Nullable<T>, and call the method with the non nullable parameter
static void Main(string[] args)
{
int? i = GetValueOrNull<int>(null, string.Empty);
}
public static Nullable<T> GetValueOrNull<T>(DbDataRecord reader, string columnName) ...
Programmatically obtain the phone number of the Android phone
... caveats to be aware of. This can return null or "" or even "???????", and it can return a stale phone number that is no longer valid. If you want something that uniquely identifies the device, you should use getDeviceId() instead.
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Is there a way to @Autowire a bean that requires constructor arguments?
... possible. One of the beans that I need to autowire requires arguments to its constructor. I've looked through the Spring docs, but cannot seem to find any reference to how to annotate constructor arguments.
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Why is __dirname not defined in node REPL?
From the node manual I see that I can get the directory of a file with __dirname , but from the REPL this seems to be undefined. Is this a misunderstanding on my side or where is the error?
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Chrome sendrequest error: TypeError: Converting circular structure to JSON
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It means that the object you pass in the request (I guess it is pagedoc) has a circular reference, something like:
var a = {};
a.b = a;
JSON.stringify cannot convert structures like this.
N.B.: This would be the case with...
Why do we need extern “C”{ #include } in C++?
...ompiles into a very different set of code. When you include a header file with a C++ compiler, the compiler is expecting C++ code. If, however, it is a C header, then the compiler expects the data contained in the header file to be compiled to a certain format—the C++ 'ABI', or 'Application Binary...
Activity restart on rotation Android
...plication, when I rotate the device (slide out the keyboard) then my Activity is restarted ( onCreate is called). Now, this is probably how it's supposed to be, but I do a lot of initial setting up in the onCreate method, so I need either:
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How to cherry pick a range of commits and merge into another branch?
I have the following repository layout:
9 Answers
9
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Viewing contents of a .jar file
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edited Aug 3 '18 at 9:12
karthik manchala
12.7k11 gold badge2525 silver badges5454 bronze badges
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How can I prevent the “You have mixed tabs and spaces. Fix this?” message?
...le, I get the dreaded "You have mixed tabs and spaces. Fix this?" message. It has three options:
4 Answers
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