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How much overhead does SSL impose?
...re used. That's why it can be very helpful to enable SSL sessions for your HTTPS service, where many connections are made. For a long-lived connection, this "end-effect" isn't as significant, and sessions aren't as useful.
Here's an interesting anecdote. When Google switched Gmail to use HTTPS, n...
What exactly is Arel in Rails 3.0?
...deo series on ActiveRelation.
The first general tutorial can be viewed at http://Innovative-Studios.com/#pilot
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Defining a HTML template to append using JQuery
...urn (i % 2) ? props[tok] : tok; };
}
Where props could look like { url: 'http://foo.com', img: '/images/bar.png', title: 'Lorem Ipsum' }.
Putting it all together assuming you've parsed and loaded your itemTpl as above, and you have an items array in-scope:
$('.search').keyup(function () {
$('....
What is a .snk for?
...n't been tampered.
You can read more about the public key cryptography at http://en.wikipedia.org/wiki/Public-key_cryptography.
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Why does Dijkstra's algorithm use decrease-key?
...n time between using the decrease-key version and the insert version. See http://www.cs.utexas.edu/users/shaikat/papers/TR-07-54.pdf
Their basic conclusion was not to use the decrease-key for most graphs. Especially for sparse graphs, the non-decrease key is significantly faster than the decrease...
surface plots in matplotlib
...y.meshgrid() is a simple way to get 2d x,y mesh out of 1d x and y values.
http://matplotlib.sourceforge.net/mpl_examples/mplot3d/surface3d_demo.py
here's pythonic way to convert your 3-tuples to 3 1d arrays.
data = [(1,2,3), (10,20,30), (11, 22, 33), (110, 220, 330)]
X,Y,Z = zip(*data)
In [7]: X
...
Foreign keys in mongo?
...
You may be interested in using a ORM like Mongoid or MongoMapper.
http://mongoid.org/docs/relations/referenced/1-n.html
In a NoSQL database like MongoDB there are not 'tables' but collections. Documents are grouped inside Collections. You can have any kind of document – with any kind of ...
When do I need to use a semicolon vs a slash in Oracle SQL?
...s "re-execute last SQL or PL/SQL command that I just executed".
See
http://ss64.com/ora/syntax-sqlplus.html
Rule of thumb would be to use slash with things that do BEGIN .. END or where you can use CREATE OR REPLACE.
For inserts that need to be unique use
INSERT INTO my_table ()
SELECT &...
Where does Java's String constant pool live, the heap or the stack?
...f string
pooling was changed considerably. You can look for details in
http://bugs.sun.com/view_bug.do?bug_id=6962931 and
http://bugs.sun.com/view_bug.do?bug_id=6962930.
String.intern() in Java 6
In those good old days all interned strings were stored in the PermGen
– the fixed size ...
What's the difference between an exclusive lock and a shared lock?
...he file. However, other processes can request read locks.
More on that : http://www.gnu.org/software/libc/manual/html_node/File-Locks.html
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