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In C/C++ what's the simplest way to reverse the order of bits in a byte?
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Python: fastest way to create a list of n lists
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The probably only way which is marginally faster than
d = [[] for x in xrange(n)]
is
from...
How can I disable logging of asset pipeline (sprockets) messages in Ruby on Rails 3.1?
...ends to be quite verbose in the (dev) log by default under Ruby on Rails 3.1 (RC1):
14 Answers
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Python list iterator behavior and next(iterator)
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What you see is the interpreter echoing back the return value of next() in addition to i being...
Append a dictionary to a dictionary [duplicate]
...eys, the final value will be taken from extra. For example,
>>> d1 = {1: 1, 2: 2}
>>> d2 = {2: 'ha!', 3: 3}
>>> d1.update(d2)
>>> d1
{1: 1, 2: 'ha!', 3: 3}
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JavaScript equivalent to printf/String.Format
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How can I create a Set of Sets in Python?
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Python's complaining because the inner set objects are mutable and thus not hashable. The solu...
What is Bit Masking?
...s an example of extracting a subset of the bits in the value:
Mask: 00001111b
Value: 01010101b
Applying the mask to the value means that we want to clear the first (higher) 4 bits, and keep the last (lower) 4 bits. Thus we have extracted the lower 4 bits. The result is:
Mask: 00001111b
Valu...
How to sort git tags by version string order of form rc-X.Y.Z.W?
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Use version sort
git tag -l | sort -V
or for git version >= 2.0
git tag -l --sort=v:ref...
Adding rounded corner and drop shadow to UICollectionViewCell
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15 Answers
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