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Convert List into Comma-Separated String
...there yet.
– Anton
Dec 15 '13 at 11:09
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Is List a subclass of List? Why are Java generics not implicitly polymorphic?
...nimals = dogs; // Awooga awooga
animals.add(new Cat());
Dog dog = dogs.get(0); // This should be safe, right?
Suddenly you have a very confused cat.
Now, you can't add a Cat to a List<? extends Animal> because you don't know it's a List<Cat>. You can retrieve a value and know that it ...
Detect changes in the DOM
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2015 update, new MutationObserver is supported by modern browsers:
Chrome 18+, Firefox 14+, IE 11+, Safari 6+
If you need to support older ones, you may try to fall back to other approaches like the ones mentioned in this ...
C++ - passing references to std::shared_ptr or boost::shared_ptr
...d_message(std::shared_ptr<std::string> msg)
{
previous_message = 0;
std::cout << *msg << std::endl;
previous_message = msg;
}
So, before we start sending we discard the current previous message, and then after the send is complete we can store the new previous message...
How to keep a git branch in sync with master
...-Rebasing
– concept47
May 2 '13 at 10:19
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How to skip over an element in .map()?
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answered Jul 17 '14 at 14:50
PointyPointy
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Volatile vs Static in Java
...oper synchronisation!
For instance:
private static volatile int counter = 0;
private void concurrentMethodWrong() {
counter = counter + 5;
//do something
counter = counter - 5;
}
Executing concurrentMethodWrong concurrently many times may lead to a final value of counter different from zer...
How to return multiple values? [duplicate]
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biniam
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answered Dec 19 '11 at 6:10
Aravind YarramAravind...
Add .gitignore to gitignore
...).
– Tomasz Gandor
Oct 21 '14 at 13:03
2
I have .gitignore file got backup first. Then I use git ...
Break a previous commit into multiple commits
...e Conrad
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