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Javascript roundoff number to nearest 0.5
...;
}
round(2.74, 0.1) = 2.7
round(2.74, 0.25) = 2.75
round(2.74, 0.5) = 2.5
round(2.74, 1.0) = 3.0
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Is there a way to detect if an image is blurry?
...mic plot:
The spread for the un-blurred images is a little better here (2.5 vs 3.3), mainly because this method only uses the strongest contrast in the image, while the FFT is essentially a mean over the whole image. The functions are also decreasing faster, so it might be easier to set a "blurry...
Which iOS app version/build number(s) MUST be incremented upon App Store release?
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CFBundleShortVersionString is the public "name" of the version (example: "2.5", or "3.8.1").
You must increase it at each release.
CFBundleVersion is the private build number. It is not seen on the AppStore. You must increase it at each upload. It means that if you ever reject a binary before it g...
How to specify the default error page in web.xml?
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</error-page>
</web-app>
But as you're still on Servlet 2.5, there's no other way than specifying every common HTTP error individually. You need to figure which HTTP errors the enduser could possibly face. On a barebones webapp with for example the usage of HTTP authentication, ha...
How to decorate a class?
In Python 2.5, is there a way to create a decorator that decorates a class? Specifically, I want to use a decorator to add a member to a class and change the constructor to take a value for that member.
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What is the most compatible way to install python modules on a Mac?
... give you the least headaches, but If you need a newer version (Leopard is 2.5.1 I believe), I would go with the macports python 2.6.
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What is the most pythonic way to check if an object is a number?
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acts like a number in certain
circumstances
If you're using Python 2.5 or older, the only real way is to check some of those "certain circumstances" and see.
In 2.6 or better, you can use isinstance with numbers.Number -- an abstract base class (ABC) that exists exactly for this purpose (lo...
Reading binary file and looping over each byte
... stuff with byte.
byte = f.read(1)
finally:
f.close()
Python 2.5-2.7
with open("myfile", "rb") as f:
byte = f.read(1)
while byte != "":
# Do stuff with byte.
byte = f.read(1)
Note that the with statement is not available in versions of Python below 2.5. To us...
Remove substring from the string
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Ruby 2.5+
If your substring is at the beginning of in the end of a string, then Ruby 2.5 has introduced the methods for this:
delete_prefix for removing a substring from the beginning of the string
delete_suffix for removing a ...
Inline labels in Matplotlib
...2**2, label="0.5x*x"); plt.plot(x2, -1*x2**2, label="-x*x"); plt.plot(x2, -2.5*x2**2, label="-2.5*x*x"); my_legend(); This puts one of the labels in the upper left corner. Any ideas on how to fix this? Seems like the problem may be that the lines are too close together.
– egpbo...