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Post-increment and pre-increment within a 'for' loop produce same output [duplicate]
...ng for loops produce identical results even though one uses post increment and the other pre-increment.
12 Answers
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Is there a way to cache GitHub credentials for pushing commits?
...chronizing my repositories to https:// on GitHub (due to firewall issues), and it asks for a password every time.
24 Answer...
Difference between @import and link in CSS
I'm learning some CSS to tweak my project template. I come to this problem and didn't find a clear answer on the web. Is there a difference between using @import or link in CSS?
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How to correctly use the extern keyword in C
...keyword, the function / variable is assumed to be available somewhere else and the resolving is deferred to the linker.
There's a difference between "extern" on functions and on variables: on variables it doesn't instantiate the variable itself, i.e. doesn't allocate any memory. This needs to be do...
What command means “do nothing” in a conditional in Bash?
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The no-op command in shell is : (colon).
if [ "$a" -ge 10 ]
then
:
elif [ "$a" -le 5 ]
then
echo "1"
else
echo "2"
fi
From the bash manual:
: (a colon)
Do nothing beyond expanding arguments and performing redirections....
Windows batch: echo without new line
What is the Windows batch equivalent of the Linux shell command echo -n which suppresses the newline at the end of the output?
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Remove Last Comma from a string
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This will remove the last comma and any whitespace after it:
str = str.replace(/,\s*$/, "");
It uses a regular expression:
The / mark the beginning and end of the regular expression
The , matches the comma
The \s means whitespace characters (space, tab...
Apache redirect to another port
I've struggled with this for some time and am definitely doing something wrong.
14 Answers
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Remove an item from a dictionary when its key is unknown
...re currently testing for object identity (is only returns True if both operands are represented by the same object in memory - this is not always the case with two object that compare equal with ==). If you are doing this on purpose, then you could rewrite your code as
some_dict = {key: value for k...
Flatten an Array of Arrays in Swift
Is there a counterpart in Swift to flatten in Scala, Xtend, Groovy, Ruby and co?
14 Answers
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