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Cron job every three days
...ecause neither suggestion actually runs the job every 3 days. 0 0 */3 * * means run on the 1st, 4th, 7th, etc. (*/3 means 1-31/3 means 1,4,7...31) so the gap will be smaller at the end of the month. (It'll run 2 days in a row if the previous month had 31 days.) The date('j') % 3 has a similar pro...
Number of days between two dates in Joda-Time
...ween two Joda-Time DateTime instances?
With ‘difference in days’ I mean if start is on Monday and end is on Tuesday I expect a return value of 1 regardless of the hour/minute/seconds of the start and end dates.
...
Calculate the execution time of a method
...he performance of a loop. Don't simply assume that doing something n times means it will be exactly n times slower as executing it once.
– svick
Dec 26 '12 at 0:47
3
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Remove all special characters from a string [duplicate]
... spaces with hyphen
$str = preg_replace('/ */', '-', $str);
// The above means "a space, followed by a space repeated zero or more times"
// (should be equivalent to / +/)
// You may also want to try this alternative:
$str = preg_replace('/\\s+/', '-', $str);
// where \s+ means "zero or more whi...
Best practices for exception management in Java or C# [closed]
...oncerns
with respect to checked exceptions.
Could you clarify what you mean by
those two issues?
Anders Hejlsberg: Let's start with
versioning, because the issues are
pretty easy to see there. Let's say I
create a method foo that declares it
throws exceptions A, B, and C. In
ver...
SQL Server IN vs. EXISTS Performance
...here, including the highly upvoted one (although I don't believe their ops meant harm). The short answer is: These are the same.
There are many keywords in the (T-)SQL language, but in the end, the only thing that really happens on the hardware is the operations as seen in the execution query plan....
Show current state of Jenkins build on GitHub repo
...
In the meanwhile the UI of Jenkins and GitHub has changed a bit and it took me a while to figure out how to configure Jenkins now correctly. The explanation here is based on Jenkins version 2.121.1.
I also assume that you have alre...
Why are these constructs using pre and post-increment undefined behavior?
...ior would be way too expensive to implement as a default, but that doesn't mean it would always be thus.
– supercat
Sep 23 '13 at 16:19
...
Why does ReSharper tell me “implicitly captured closure”?
...ce to helper.Lambda1 also indirectly references the string in p2, and this means that the garbage collector will not be able to deallocate it. At worst it is a memory/resource leak. Alternatively it may keep object(s) alive longer than otherwise needed, which can have an impact on GC if they get pro...
What to use as an initial version? [closed]
... how and why the versioning is being driven by the setup. What do you even mean by that, in a way that matters to the answer? A well defined answer should include cons and pros of each decision, you included only vague reasonings :) .
– Eksapsy
Jun 21 at 10:04
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