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Check if class already assigned before adding
In jQuery, is it recommended to check if a class is already assigned to an element before adding that class? Will it even have any effect at all?
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JavaScript get window X/Y position for scroll
...another. However, there seems to be a tremendous amount of options when it comes to guessing which object holds the true X/Y for your browser.
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Wrapping null-returning method in Java with Option in Scala?
...t you don't know whether it will return you a string or a null, because it comes from Java.
4 Answers
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How to pass parameters to a view
... edited May 23 '17 at 12:10
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111 silver badge
answered Oct 18 '11 at 12:48
diradira
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SET versus SELECT when assigning variables?
...iable to null prior to the select. Once you factor that in, how do the two compare for performance? (Side note: I don't understand the rationale for select not setting your variable to null in the event a query returns null. When would you ever want that?)
– youcantryreachingme...
LD_LIBRARY_PATH vs LIBRARY_PATH
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LIBRARY_PATH is used by gcc before compilation to search directories containing static and shared libraries that need to be linked to your program.
LD_LIBRARY_PATH is used by your program to search directories containing shared libraries after it has been suc...
What is the difference between compile code and executable code?
I always use the terms compile and build interchangeably.
6 Answers
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$.ajax - dataType
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which one is the more preferred way or most recommend.
– Nick Kahn
Apr 27 '10 at 17:18
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How to use Active Support core extensions
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Only one expression can be specified in the select list when the subquery is not introduced with EXI
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You can't return two (or multiple) columns in your subquery to do the comparison in the WHERE A_ID IN (subquery) clause - which column is it supposed to compare A_ID to? Your subquery must only return the one column needed for the comparison to the column on the other side of the IN. So the que...