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What is the use of “assert” in Python?
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The assert statement exists in almost every programming language. It helps detect problems early...
Do c++11 lambdas capture variables they don't use?
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answered May 30 '11 at 23:09
James McNellisJames McNellis
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Are empty HTML5 data attributes valid?
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useruser
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What's a redirect URI? how does it apply to iOS app for OAuth2.0?
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edited Apr 8 '16 at 15:43
Halalbin
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answered Nov 9 '12 at 13:28
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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...
How to reference a file for variables using Bash?
... to work?
– Ramiro
Jun 18 '14 at 22:30
2
Is there a way to use source by piping in the content ra...
How to delete a character from a string using Python
...to remove the central character:
midlen = len(oldstr)/2 # //2 in python 3
newstr = oldstr[:midlen] + oldstr[midlen+1:]
You asked if strings end with a special character. No, you are thinking like a C programmer. In Python, strings are stored with their length, so any byte value, including \0,...
Cannot pass null argument when using type hinting
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362
PHP 7.1 or newer (released 2nd December 2016)
You can explicitly declare a variable to be nul...
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...
Combine two data frames by rows (rbind) when they have different sets of columns
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