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Returning value from called function in a shell script
...ho "directory not created"
else
echo "directory already created"
fi
3. Share variable
lockdir="somedir"
retval=-1
testlock(){
if mkdir "$lockdir"
then # Directory did not exist, but it was created successfully
echo >&2 "successfully acquired lock: $lockdir"
r...
Shuffle an array with python, randomize array item order with python
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answered Jan 23 '09 at 18:37
David ZDavid Z
111k2323 gold badges218218 silver badges256256 bronze badges
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How to get the last element of a slice?
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307
For just reading the last element of a slice:
sl[len(sl)-1]
For removing it:
sl = sl[:len(...
What does 'super' do in Python?
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319
The benefits of super() in single-inheritance are minimal -- mostly, you don't have to hard-co...
Performance of FOR vs FOREACH in PHP
...rotime(true) - $start, " Seconds\n";
And the results:
Completed in 0.0073502063751221 Seconds
Completed in 0.0019769668579102 Seconds
Completed in 0.0011849403381348 Seconds
Completed in 0.00111985206604 Seconds
So if you're modifying the array in the loop, it's several times faster to use refe...
How to include “zero” / “0” results in COUNT aggregate?
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edited Feb 10 '13 at 0:09
answered Feb 10 '13 at 0:04
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error: passing xxx as 'this' argument of xxx discards qualifiers
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537
The objects in the std::set are stored as const StudentT. So when you try to call getId() with ...
MySQL IF NOT NULL, then display 1, else display 0
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LEFT JOIN addresses a ON c.customerid = a.customerid
WHERE customerid = 123
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NSDefaultRunLoopMode vs NSRunLoopCommonModes
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Warpling
1,63522 gold badges1818 silver badges2929 bronze badges
answered Aug 28 '11 at 20:38
viggio24viggio24
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What is the pythonic way to avoid default parameters that are empty lists?
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153
def my_func(working_list=None):
if working_list is None:
working_list = []
wor...