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Are trailing commas in arrays and objects part of the spec?
...ertyNameAndValueList }
For arrays literals (Section 11.1.4) it is even more interesting (Update: this already existed in ES3):
ArrayLiteral :
[ Elisionopt ]
[ ElementList ]
[ ElementList , Elision_opt ]
(where Elision_opt is Elisionopt, meaning the Elision is optional)
Elision is...
How to avoid “ConcurrentModificationException” while removing elements from `ArrayList` while iterat
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Is it better in C++ to pass by value or pass by constant reference?
...e object had to be made and, except for very small objects, this is always more expensive than passing a reference.
With C++11, we have gained move semantics. In a nutshell, move semantics permit that, in some cases, an object can be passed “by value” without copying it. In particular, this is ...
Exit Shell Script Based on Process Exit Code
...to ls -al file.ext || exit $? but if the then or else clauses are somewhat more complex, it is more maintainable.
– tripleee
Aug 23 '12 at 7:14
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How to find the largest file in a directory and its subdirectories?
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Is there a way to make mv create the directory to be moved to if it doesn't exist?
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How do I keep Python print from adding newlines or spaces? [duplicate]
...r print statements using the old syntax in the same module, so whilst it's more elegant than sys.stdout.write, it can be more work to make the change.
– James
Jan 14 '14 at 17:57
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Lambda expression vs method reference [closed]
...lass vs an anonymous class"? And the answer is the same: when you find it more readable. There are certainly cases that are definitely one or definitely the other but there's a host of grey in the middle, and judgment must be used.
The theory behind method refs is simple: names matter. If a me...
VS 2012: Scroll Solution Explorer to current file
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