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Retrieving parameters from a URL
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Pikamander2
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answered Feb 22 '11 at 7:54
systempuntooutsystempuntoout
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Extract month and year from a zoo::yearmon object
...ere is your example date (properly created!)
date1 <- as.yearmon("Mar 2012", "%b %Y")
Then we can extract the date parts as required:
> format(date1, "%b") ## Month, char, abbreviated
[1] "Mar"
> format(date1, "%Y") ## Year with century
[1] "2012"
> format(date1, "%m") ## numeric mon...
How to make “if not true condition”?
...count) option to grep and then do if ! [ $(grep -c "sysa" /etc/passwd) -eq 0 ] ; then which works but is rather old school.
BUT, you could use the newest shell features (arithmetic evaluation) like
if ! (( $(grep -c "sysa" /etc/passwd) == 0 )) ; then ...`
which also gives you the benefit of usin...
Correct approach to global logging in Golang
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Create a single log.Logger and pass it around?
That is possible. A log.Logger can be ...
How to get current language code with Swift?
...ale?'
– Puji Wahono
Jul 4 '19 at 7:40
2
As far as I notice, it will return actual language set in...
How to calculate md5 hash of a file using javascript
...enerally unable to read files from the local filesystem.
I wrote that in 2009. So what about new browsers?
With a browser that supports the FileAPI, you *can * read the contents of a file - the user has to have selected it, either with an <input> element or drag-and-drop. As of Jan 2013, her...
How do I add spacing between columns in Bootstrap?
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edited Jun 22 at 20:02
K. W. Cooper
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answered Sep 11 '13 at ...
Passing an array by reference
...o an array, rather than the (invalid) array of references int & array[100];.
EDIT: Some clarification.
void foo(int * x);
void foo(int x[100]);
void foo(int x[]);
These three are different ways of declaring the same function. They're all treated as taking an int * parameter, you can pass an...
Using an if statement to check if a div is empty
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10 Answers
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Is there any advantage of using map over unordered_map in case of trivial keys?
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answered Feb 4 '10 at 2:43
GManNickGGManNickG
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