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How can I reset a react component including all transitively reachable state?
...eact components that are conceptually stateful which I want to reset. The ideal behavior would be equivalent to removing the old component and readding a new, pristine component.
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Simplest way to do a recursive self-join?
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(
SELECT *
FROM mytable
WHERE ParentID IS NULL -- this condition defines the ultimate ancestors in your chain, change it as appropriate
UNION ALL
SELECT m.*
FROM mytable m
JOIN q
ON m.parentID = q.PersonID
...
Meaning of Android Studio error: Not annotated parameter overrides @NonNull parameter
I'm trying out Android Studio. Upon creating a new project and adding a default onSaveInstanceState method to the create MyActivity class, when I try to commit the code to Git, I get a strange error I don't understand. The code is this:
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What's the standard way to work with dates and times in Scala? Should I use Java types or there are
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Video scalaj: Idiomatic Scala Wrappers for Java Libraries days2010.scala-lang.org/node/138/164
– oluies
Sep 1 '10 at 1:48
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URL-parameters and logic in Django class-based views (TemplateView)
...View which means that you would do the logic in your get_context_data override.
– Ngenator
Apr 2 '13 at 12:58
4
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How does generic lambda work in C++14?
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Unfortunately, they are not part of C++11 (http://ideone.com/NsqYuq):
auto glambda = [](auto a) { return a; };
int main() {}
With g++ 4.7:
prog.cpp:1:24: error: parameter declared ‘auto’
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However, the way it might be implemented in C++14 as per the Portland p...
Does MySQL included with MAMP not include a config file?
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+1 for the max_allowed_packet. How did you know exactly what I was looking for?
– iGbanam
Sep 29 '14 at 11:27
3
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Copying text to the clipboard using Java
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In which context did you test this? From a GUI application? On which platform? Does it work setting the clipboard 100 times in a row (with some appropriate pause between each set)?
– Peter Mortensen
Feb 9...
Why does substring slicing with index out of range work?
...xample'[3:4] and 'example'[3] are fundamentally different, and slicing outside the bounds of a sequence (at least for built-ins) doesn't cause an error.
It might be surprising at first, but it makes sense when you think about it. Indexing returns a single item, but slicing returns a subsequence of...
Is it bad practice to return from within a try catch finally block?
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Personally, I would avoid this kind of coding as I don't feel like seeing return statements before finally statements.
My mind is simple and it process things rather linearly. Therefore when I walk through the code for dry running, I will have ten...