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Is it a good practice to use try-except-else in Python?
...o, the use of exceptions in Python does not slow the surrounding code and calling code as it does in some compiled languages (i.e. CPython already implements code for exception checking at every step, regardless of whether you actually use exceptions or not).
In other words, your understanding that...
How can I pass selected row to commandLink inside dataTable or ui:repeat?
...e by @ViewScoped.
Use Application#evaluateExpressionGet() to programmatically evaluate the current #{item}.
public void insert() {
FacesContext context = FacesContext.getCurrentInstance();
Item item = context.getApplication().evaluateExpressionGet(context, "#{item}", Item.class);
L...
git stash blunder: git stash pop and ended up with merge conflicts
...emoved from the stash list. You need to resolve the conflicts by hand and call git stash drop manually afterwards.
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how to ignore namespaces with XPath
...re sometimes client-generated i.e. unknown to me. Then i am left with basically three choices :
5 Answers
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Where are my postgres *.conf files?
I have recently reinstalled postgresql 8.3 on my Ubuntu 8.04 after update. Used EnterpriseDB package. I can connect to the database locally, I see system DB postgres but I can't configure it because I can't find config files. Searched through entire hard drive and found only samples like pg_hba.con...
C#: Raising an inherited event
...
I had some issues implementing this... stackoverflow.com/q/10593632/328397
– goodguys_activate
May 15 '12 at 3:07
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Timer function to provide time in nano seconds using C++
...psets, so you may want to make sure you do not have those chipset. Additionally some dual core AMDs may also cause a problem. See the second post by sebbbi, where he states:
QueryPerformanceCounter() and
QueryPerformanceFrequency() offer a
bit better resolution, but have
different issues. ...
How exactly does the “Specific Version” property of an assembly reference work in Visual Studio?
...ble about how the property works. Even SO, it appears to me, does not have all the answers, so here is my attempt at self-answering the question:
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C++ performance challenge: integer to std::string conversion
... val /= 10;
}
return s;
}
This will blow up on systems that disallow unaligned memory accesses (in which case, the first unaligned assignment via *(short*) would cause a segfault), but should work very nicely otherwise.
One important thing to do is to minimize the use of std::string. (I...
How can I combine hashes in Perl?
...h hashes into %hash1? I always know that %hash2 and %hash1 always have unique keys. I would also prefer a single line of code if possible.
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