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How do you cast a List of supertypes to a List of subtypes?
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Simply casting to List<TestB> almost works; but it doesn't work because you can't cast a generic type of one parameter to another. However, you can cast through an intermediate wildcard type and it will be allowed (since you can cast to and from wildcard types, jus...
Getting result of dynamic SQL into a variable for sql-server
...ar(1000)
DECLARE @city varchar(75)
declare @counts int
SET @city = 'New York'
SET @sqlCommand = 'SELECT @cnt=COUNT(*) FROM customers WHERE City = @city'
EXECUTE sp_executesql @sqlCommand, N'@city nvarchar(75),@cnt int OUTPUT', @city = @city, @cnt=@counts OUTPUT
select @counts as Counts
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Qt: *.pro vs *.pri
...t is the difference between *.pro and *.pri configuration files for qmake?
3 Answers
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Double not (!!) operator in PHP
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Álvaro González
124k3434 gold badges222222 silver badges314314 bronze badges
answered Jan 24 '10 at 14:13
TheoTheo
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Serializing object that contains cyclic object value
... already serialized objects:
var seen = [];
JSON.stringify(obj, function(key, val) {
if (val != null && typeof val == "object") {
if (seen.indexOf(val) >= 0) {
return;
}
seen.push(val);
}
return val;
});
http://jsfiddle.net/mH6cJ/38/
As ...
Making a Location object in Android with latitude and longitude values
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Phan Van Linh
38.2k1717 gold badges187187 silver badges203203 bronze badges
answered Aug 1 '13 at 1:52
AndroidersonAndr...
What's a standard way to do a no-op in python?
...for readability I find it helps to include them all, so that if you are looking through the code you can see what happens as a result of each option. How do I code the no-op? Currently, I'm doing it like this:
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Is it possible for intellij to organize imports the same way as in Eclipse?
I'm working on a project where all the team members are using Eclipse and I'm the only IDEA user. This creates a lot of noise from imports rearrangements. The order in which eclipse imports is: Java, Javax, Org, Com, everything else in alphabetical order. Is it possible to configure IDEA to follow t...
How do I copy an entire directory of files into an existing directory using Python?
...files) and a directory named baz (also containing one or more files). Make sure there is not a directory named foo .
14...
Visual Studio build fails: unable to copy exe-file from obj\debug to bin\debug
...ested and verified that the solution given in the accepted answer below works on that sample project. If this solution doesn't work for you, you are probably having a different issue (which belongs in a separate question).
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