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Why do some websites add “Slugs” to the end of URLs? [closed]
...iendly is 'discover-ability', meaning you can take a guess at url's simply from the address bar. i.love.pets.com/search/cats+dogs could easily lead to i.love.pets.com/search/pug+puppies etc
– Xian
Sep 6 '08 at 13:51
...
Using a dispatch_once singleton model in Swift
...e and the nested struct approach if you need to support earlier versions.
From my experience with Swift there are three approaches to implement the Singleton pattern that support lazy initialization and thread safety.
Class constant
class Singleton {
static let sharedInstance = Singleton()
}
...
What is the difference between pylab and pyplot? [duplicate]
...raged and the OO interface is recommended for most non-interactive usage.
From the documentation, the emphasis is mine:
Matplotlib is the whole package; pylab is a module in matplotlib that gets installed alongside matplotlib; and matplotlib.pyplot is a module in matplotlib.
Pyplot provides the st...
How is “=default” different from “{}” for default constructor and destructor?
...e constructors/assignment, destructors etc) means something very different from simply doing {}. With the latter, the function becomes "user-provided". And that changes everything.
This is a trivial class by C++11's definition:
struct Trivial
{
int foo;
};
If you attempt to default construct o...
Converting stream of int's to char's in java
...se InputStreamReader with the appropriate Charset instead.
Simply casting from int to char only works if you want ISO-8859-1, if you're reading bytes from a stream directly.
EDIT: If you are already using a Reader, then casting the return value of read() to char is the right way to go (after check...
When is del useful in python?
...eleting a variable, one could just assign None to it. And when deleting from a dictionary, a del method could be added.
...
How to get the client IP address in PHP [duplicate]
...
Whatever you do, make sure not to trust data sent from the client. $_SERVER['REMOTE_ADDR'] contains the real IP address of the connecting party. That is the most reliable value you can find.
However, they can be behind a proxy server in which case the proxy may have set th...
Setting up maven dependency for SQL Server
...
Download the driver JAR from the link provided by Olaf and add it to your local Maven repository with;
mvn install:install-file -Dfile=sqljdbc4.jar -DgroupId=com.microsoft.sqlserver -DartifactId=sqljdbc4 -Dversion=4.0 -Dpackaging=jar
Then add it t...
Different floating point result with optimization enabled - compiler bug?
...wide. Different optimization levels affect how often floating point values from CPU get saved into memory and thus rounded from 80-bit precision to 64-bit precision.
Use the -ffloat-store gcc option to get the same floating point results with different optimization levels.
Alternatively, use the l...
Matplotlib: “Unknown projection '3d'” error
...ng using the projection keyword argument:
import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d import axes3d, Axes3D #<-- Note the capitalization!
fig = plt.figure()
ax = Axes3D(fig) #<-- Note the difference from your original code...
X, Y, Z = axes3d.get_test_data(0.05)
cset = ax.con...