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Check if SQL Connection is Open or Closed
...dn.microsoft.com/en-us/library/system.data.sqlclient.sqlconnection.state(v=vs.110).aspx
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Which is more efficient, a for-each loop, or an iterator?
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If you are just wandering over the collection to read all of the values, then there is no difference between using an iterator or the new for loop syntax, as the new syntax just uses the iterator underwater.
If however, you mean by loop the old "c-style" loop:
for(int i=0; i&l...
Why is early return slower than else?
...he key we are looking for (that's what
happens in the case of __builtins__ vs without_else).
The slot is full and has exactly the hash value we want, then Python
checks to see if the key and the object we are looking up are the
same object (which in this case they will be because short strings
that ...
PostgreSQL Crosstab Query
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Install the additional module tablefunc once per database, which provides the function crosstab(). Since Postgres 9.1 you can use CREATE EXTENSION for that:
CREATE EXTENSION IF NOT EXISTS tablefunc;
Improved test case
CREATE ...
TDD vs. Unit testing [closed]
...n. Even Unit tests written after the code are better than no Unit Tests at all!
Once they're proficient at Unit Testing (and everything that comes with it), then you can work on getting them to create the tests first...and code second.
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Adding a guideline to the editor in Visual Studio
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This is originally from Sara's blog.
It also works with almost any version of Visual Studio, you just need to change the "8.0" in the registry key to the appropriate version number for your version of Visual Studio.
The guide line shows ...
What's the absurd function in Data.Void useful for?
...l g (Var a) = g a
eval g (f :$ s) = eval g f $$ eval g s where
(b :$$ vs) $$ v = b :$$ (vs ++ [v]) -- stuck application gets longer
LV g t $$ v = eval (maybe v g) t -- an applied lambda gets unstuck
eval g (Lam t) = LV g t
You guessed it. To evaluate a closed term a...
apache to tomcat: mod_jk vs mod_proxy
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Specifically see wiki.apache.org/tomcat/FAQ/Connectors#Q7 who @daniel-serodio referenced... Where can I download a binary distribution of my connector? You cannot: you need to download the source and compile it for your platform.
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Node.js vs .Net performance
...FAST and handling lots of LOAD are two different things. A server that's really FAST at serving one request per second might totally croak if you send it 500 requests per second (under LOAD).
You also have to consider static (and cached) vs dynamic pages. If you're worried about static pages, then...
How do I enable file editing in Visual Studio's debug mode?
...solution for me - I have no idea why UN-checking "Edit and Continue" would allow me to Edit...seems counterintuitive. Anyway, I would mark this as the answer.
– Sam Schutte
Aug 26 '09 at 14:00
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