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html select option separator
... Why does the optgroup solution sucks? It looks semantically more appropriate and it doesn't seem to have compatibility issues.
– db0
Feb 7 '15 at 15:47
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How do I use the ternary operator ( ? : ) in PHP as a shorthand for “if / else”?
...ty, it will output some form of “true”. The usual form of the above is more like: echo $address['street2'] ?? 'Empty'; however as mentioned, it is the “null coalescing operator” so it only tests for null and not empty. This is because ?? Is effectively a shorthand for isset().
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a href link for entire div in HTML/CSS
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which is semantically correct and works as expected but is not a div any more.
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How do I get a list of all the duplicate items using pandas in python?
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How to use JUnit to test asynchronous processes
... accepted answer. Testing goes beyond unit testing. The OP calls it out as more of an Integration Test than a Unit Test.
– Jeremiah Adams
Jun 19 '18 at 16:46
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Profiling Django
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Just type "django-profiling" on google, you'll get these links (and more):
http://code.djangoproject.com/wiki/ProfilingDjango
http://code.google.com/p/django-profiling/
http://www.rkblog.rk.edu.pl/w/p/django-profiling-hotshot-and-kcachegrind/
Personally I'm using the middleware approach -...
Drop unused factor levels in a subsetted data frame
...df,function(x) if(is.factor(x)) factor(x) else x) ...Is drop.levels() much more efficient computationally or better with large data sets? (One would have to rewrite the line above in a for-loop for a huge data frame, I suppose.)
– hatmatrix
Jul 29 '09 at 17:09
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How can I close a buffer without closing the window?
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Git ignore sub folders
...files you don't tell it to - it ignores whatever matches the wildcards, no more, no less.
– Cascabel
Mar 30 '10 at 14:59
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