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Favorite way to create an new IEnumerable sequence from a single value?
...
This method is more purely functional than creating a new array.
– Roy Tinker
Oct 4 '11 at 1:00
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Update a table using JOIN in SQL Server?
...data), you can use a CTE (common table expression) - see here and here for more details:
;WITH t2 AS
(
SELECT [key], CalculatedColumn = SUM(some_column)
FROM dbo.table2
GROUP BY [key]
)
UPDATE t1
SET t1.CalculatedColumn = t2.CalculatedColumn
FROM dbo.table1 AS t1
INNER JOIN t2
ON ...
Making an array of integers in iOS
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How can I build a small operating system on an old desktop computer? [closed]
...his book is mostly theory, but I believe he also has a book that discusses more of the implementation. I've never read it, though, so I can't comment on it.
That should help you bone up on process management, memory management, filesystems, and everything else your OS kernel needs to do to get it u...
What does [STAThread] do?
...stem dialogs do use this technology.
MSDN explains the reason in slightly more detail:
STAThreadAttribute indicates that the
COM threading model for the
application is single-threaded
apartment. This attribute must be
present on the entry point of any
application that uses Windows For...
What do *args and **kwargs mean? [duplicate]
...e it like this:
def my_sum(*args):
return sum(args)
It’s probably more commonly used in object-oriented programming, when you’re overriding a function, and want to call the original function with whatever arguments the user passes in.
You don’t actually have to call them args and kwarg...
Test PHP headers with PHPUnit
... PHPUnit will print a header to the screen and at that point you can't add more headers.
The work around is to run the test in an isolated process. Here is an example
<?php
class FooTest extends PHPUnit_Framework_TestCase
{
/**
* @runInSeparateProcess
*/
public function testB...
What does the [Flags] Enum Attribute mean in C#?
...o determine whether any bits in the numeric value are set.
You can find more info about the flags attribute and its usage at msdn and designing flags at msdn
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