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What's the difference between KeyDown and KeyPress in .NET?
...he the number of key repeats, but it sends a repeat count, which, IIRC, WinForms uses to generate exactly one KeyDown per repeat.
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Python - use list as function parameters
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How do I break out of nested loops in Java?
...e of least surprise WRT the many who never heard of (or forgot about) that form of break. Even then, exceptions are another better-known exception (sorry). But I'd still be unhappy about this if it wasn't obvious (small loops, warning comment if the label/break still aren't visible enough).
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A good example for boost::algorithm::join
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How do I delete multiple rows in Entity Framework (without foreach)
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For sure this answer is easier but performance wise it might not be great. Why? what this exatly doet is same as deleting it in foreach loop, it first fetches all the rows and then delete is one by one, only gain is for saving "DetectChanges will be called once b...
Git: “Not currently on any branch.” Is there an easy way to get back on a branch, while keeping the
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@ErikB Definitely true. :) babay's answer is the valid form of what Alex seems to have been trying to do.
– Benjamin Oakes
Mar 29 '12 at 12:35
add a commen...
Shell command to sum integers, one per line?
...1} END {print s}' mydatafile # DO NOT USE THIS!!
that is because in this form awk uses a 32 bit signed integer representation: it will overflow for sums that exceed 2147483647 (i.e., 2^31).
A more general answer (for summing integers) would be:
awk '{s+=$1} END {printf "%.0f\n", s}' mydatafile #...
How to tag an older commit in Git?
... date of the HEAD commit, and add the tag
GIT_COMMITTER_DATE="$(git show --format=%aD | head -1)" \
git tag -a v1.2 -m"v1.2"
# set HEAD back to whatever you want it to be
git checkout master
Details
The answer by @dkinzer creates tags whose date is the current date (when you ran the git tag comman...
How to sort a list of objects based on an attribute of the objects?
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On large lists you will get better performance using operator.attrgetter('count') as your key. This is just an optimized (lower level) form of the lambda function in this answer.
– David Eyk
Dec 31 '08 at 19:35
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Examples of Algorithms which has O(1), O(n log n) and O(log n) complexities
...en mean the length of input on a Turing machine tape--which makes vertical form of division take exponential time to implement. :-) Each domain has its own requirements and its own precinct of abstracting.
– P Shved
Oct 20 '09 at 5:54
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