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“Deprecation warning: moment construction falls back to js Date” when trying to convert RFC2822 date
...aged and will be removed in an upcoming major
release. Please refer to
http://momentjs.com/guides/#/warnings/js-date/ for more info."
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follo...
Count, size, length…too many choices in Ruby?
...
I found a good answare at http://blog.hasmanythrough.com/2008/2/27/count-length-size
In ActiveRecord, there are several ways to find out how many records
are in an association, and there are some subtle differences in how
they work.
post....
How do you use the “WITH” clause in MySQL?
...ollowed the link shared by lisachenko and found another link to this blog:
http://guilhembichot.blogspot.co.uk/2013/11/with-recursive-and-mysql.html
The post lays out ways of emulating the 2 uses of SQL WITH. Really good explanation on how these work to do a similar query as SQL WITH.
1) Use WITH...
What is the difference between Unidirectional and Bidirectional JPA and Hibernate associations?
...so recommended to have bi-directional associations by the Hibernate docs:
http://docs.jboss.org/hibernate/core/3.3/reference/en/html/best-practices.html
Specifically:
Prefer bidirectional associations:
Unidirectional associations are more difficult to query. In a large
application, al...
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
...