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Most efficient way to cast List to List
... be declared as taking a List<? extends BaseClass>.
But if it isn't and you can't change it, you can wrap the list with Collections.unmodifiableList(...), which allows returning a List of a supertype of the argument's parameter. (It avoids the typesafety problem by throwing UnsupportedOperati...
Why does Boolean.ToString output “True” and not “true”
Is there a valid reason for it being "True" and not "true"? It breaks when writing XML as XML's boolean type is lower case , and also isn't compatible with C#'s true/false (not sure about CLS though).
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Throw keyword in function's signature
...ce this, so it has to be checked at runtime, which is usually undesirable. And it is not well supported in any case. (MSVC ignores exception specifications, except throw(), which it interprets as a guarantee that no exception will be thrown.
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Catch multiple exceptions in one line (except block)
...the exception from the variable with a comma will still work in Python 2.6 and 2.7, but is now deprecated and does not work in Python 3; now you should be using as.
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What does it mean when MySQL is in the state “Sending data”?
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This is quite a misleading status. It should be called "reading and filtering data".
This means that MySQL has some data stored on the disk (or in memory) which is yet to be read and sent over. It may be the table itself, an index, a temporary table, a sorted output etc.
If you have a 1...
Should one use < or
...!= instead? I'd say that that most clearly establishes i as a loop counter and nothing else.
– yungchin
Feb 12 '09 at 2:59
21
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What's the best way to break from nested loops in JavaScript?
...for (var k in set3) {
break loop2; // breaks out of loop3 and loop2
}
}
}
as defined in EMCA-262 section 12.12. [MDN Docs]
Unlike C, these labels can only be used for continue and break, as Javascript does not have goto.
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Xcode 4.2 debug doesn't symbolicate stack call
...owever, I have found an effective work-around - creating my own exception handler (which is also useful for other reasons). First, create a function that will handle the error and output it to the console (as well as whatever else you want to do with it):
void uncaughtExceptionHandler(NSException *...
Changing MongoDB data store directory
Until now I have not been specifying a MongoDB data directory and have had only one 30 GB primary partition.
9 Answers
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Cannot open database “test” requested by the login. The login failed. Login failed for user 'xyz\ASP
...getting thrown a ditto looking exception message from my Azure SQL Server, and turned out I had given wrong name for my DB in one of the connectionstrings in the C# code in my ASP.NET project.
– Ron16
Sep 28 '17 at 18:55
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