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while (1) Vs. for (;;) Is there a speed difference?
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In perl, they result in the same opcodes:
$ perl -MO=Concise -e 'for(;;) { print "foo\n" }'
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How to find all combinations of coins when given some dollar value
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What does “hashable” mean in Python?
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From the Python glossary:
An object is hashable if it has a hash value which never changes...
sys.argv[1] meaning in script
... (In reference to my example below) in simplified terms what the sys.argv[1] represents. Is it simply asking for an input?
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Why do people say there is modulo bias when using a random number generator?
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How to get item's position in a list?
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No secret option provided to Rack::Session::Cookie warning?
I am running Rails 3.2.3, Ruby 1.9 under Fedora 17. I get this warning, when I run rails s , and how do I fix?
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Pandas percentage of total with groupby
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In which order should floats be added to get the most precise result?
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How do I loop through a list by twos? [duplicate]
...u can use for in range with a step size of 2:
Python 2
for i in xrange(0,10,2):
print(i)
Python 3
for i in range(0,10,2):
print(i)
Note: Use xrange in Python 2 instead of range because it is more efficient as it generates an iterable object, and not the whole list.
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