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Difference between left join and right join in SQL Server [duplicate]
...ll
Null Null Kathmandu
Some facts
For INNER joins the order doesn't matter
For (LEFT, RIGHT or FULL) OUTER joins,the order matter
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Python unit test with base and sub class
... This method only works for setUp and tearDown methods if you reverse the order of the base classes. Because the methods are defined in unittest.TestCase, and they don't call super(), then any setUp and tearDown methods in CommonTests need to be first in the MRO, or they won't be called at all.
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How to order events bound with jQuery
...eralize this kind of process, but in my case I was only concerned with the order of first event listener in the chain.
If it's of any use, here is my jQuery plugin that binds an event listener that is always triggered before any others:
** UPDATED inline with jQuery changes (thanks Toskan) **
(f...
counting number of directories in a specific directory
...
Nice! How would you do this $ ls -l .vim with PHP? Or how to get only the total, without the list. I mean, in this case get only 52?
– Pathros
Mar 8 '17 at 18:32
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Static/Dynamic vs Strong/Weak
...e it does not want to cast one type to the other implicitly.
whereas in PHP:
$str = 5 + "hello"; // equals 5 because "hello" is implicitly casted to 0
// PHP is weakly typed, thus is a very forgiving language.
Static typing allows for checking type correctness at compile time. Statically type...
Why am I getting an OPTIONS request instead of a GET request?
...d an HTTP OPTIONS request header to the resource on the other
domain, in order to determine whether the actual request is safe to
send. Cross-site requests are preflighted like this since they may
have implications to user data. In particular, a request is
preflighted if:
It uses m...
Send message to specific client with socket.io and node.js
... you need to send an event to a specific socket with a callback, then use @PHPthinking's answer and use io.sockets.connected[socketid].emit();. Tested with 1.4.6.
– tbutcaru
May 25 '16 at 14:48
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How to compare two floating point numbers in Bash?
... then
echo "${FOO} > ${BAR}";
else
echo "${FOO} <= ${BAR}";
fi
Order of logical operators matters. Integer parts are compared as numbers and fractional parts are intentionally compared as strings. Variables are split into integer and fractional parts using this method.
Won't compare flo...
Asserting successive calls to a mock method
...approach to this problem.
From the docs:
assert_has_calls (calls, any_order=False)
assert the mock has been
called with the specified calls. The mock_calls list is checked for
the calls.
If any_order is False (the default) then the calls must be sequential.
There can be extra ca...
Case objects vs Enumerations in Scala
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The other difference is that Enumeration enum is ordered out of the box, whereas case object based enum obviosly not
– om-nom-nom
Oct 18 '12 at 11:48
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