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How to run a single test with Mocha?
...Script stuff. My test file contains 5 tests. Is that possible to run a specific test (or set of tests) rather than all the tests in the file?
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How many database indexes is too many?
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It depends on the operations that occur on the table.
If there's lots of SELECTs and very few changes, index all you like.... these will (potentially) speed the SELECT statements up.
If the table is heavily hit by UPDATEs, INSERTs + DELETEs ... these will be very slow with lots...
How to stop C++ console application from exiting immediately?
... As Charles Bailey rightly points out in a comment below, this won't work if there are characters buffered in stdin, and there's really no good way to work around that. If you're running with a debugger attached, John Dibling's suggested solution is probably the cleanest solution to your problem.
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Remove an element from a Bash array
...ippo
$ array=( "${array[@]/$delete}" ) #Quotes when working with strings
If need to delete more than one element:
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$ delete=(pluto pippo)
for del in ${delete[@]}
do
array=("${array[@]/$del}") #Quotes when working with strings
done
Caveat
This technique actually removes prefixes matching ...
Linux how to copy but not overwrite? [closed]
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Note, this will exit with an error if the file exists. To exit with success, try cp -n source.txt destination.txt || true
– galenandrew
Apr 1 '16 at 16:38
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SortedList, SortedDictionary and Dictionary
...nts will be sorted. Not so with Dictionary<T,V>.
MSDN addresses the difference between SortedList<T,V> and SortedDictionary<T,V>:
The SortedDictionary(TKey, TValue) generic class is a binary search
tree with O(log n) retrieval, where n is the number of elements in
the dic...
bool operator ++ and --
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It comes from the history of using integer values as booleans.
If x is an int, but I am using it as a boolean as per if(x)... then incrementing will mean that whatever its truth value before the operation, it will have a truth-value of true after it (barring overflow).
However, it's impo...
Is assert evil? [closed]
...isused.
Assert is for sanity checks. Things that should kill the program if they are not correct. Not for validation or as a replacement for error handling.
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How to focus on a form input text field on page load using jQuery?
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If using a dialog please see this answer if the above is not working stackoverflow.com/a/20629541/966609
– Matt Canty
Aug 4 '14 at 15:46
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An efficient compression algorithm for short text strings [closed]
...orithm to compress text strings with these characteristics". For instance, if long repetitions are expected, simple Run-Lengh Encoding might be enough. If you can guarantee that only English words, spaces, punctiation and the occasional digits will be present, then Huffman with a pre-defined Huffman...