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Using a dictionary to count the items in a list [duplicate]
I'm new to Python and I have a simple question, say I have a list of items:
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Why is lazy evaluation useful?
I have long been wondering why lazy evaluation is useful. I have yet to have anyone explain to me in a way that makes sense; mostly it ends up boiling down to "trust me".
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Argparse optional positional arguments?
I have a script which is meant to be used like this:
usage: installer.py dir [-h] [-v]
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Why use double indirection? or Why use pointers to pointers?
When should a double indirection be used in C? Can anyone explain with a example?
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Reset C int array to zero : the fastest way?
Assuming that we have a T myarray[100] with T = int, unsigned int, long long int or unsigned long long int, what is the fastest way to reset all its content to zero (not only for initialization but to reset the content several times in my program)? Maybe with memset?
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Automatically remove Subversion unversioned files
Does anybody know a way to recursively remove all files in a working copy that are not under version control? (I need this to get more reliable results in my automatic build VMware.)
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Better way to get type of a Javascript variable?
Is there a better way to get the type of a variable in JS than typeof ? It works fine when you do:
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How to write log to file
I'm trying to write to a log file with Go.
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Does assignment with a comma work?
Why does aaa = 1,2,3 work and set the value of aaa to 1 ?
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Best way to select random rows PostgreSQL
I want a random selection of rows in PostgreSQL, I tried this:
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