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What is the difference between Collections.emptyList() and Collections.EMPTY_LIST
.../returning the untyped version (EMPTY_LIST/EMPTY_SET/EMPTY_MAP) causes the compiler to give up on generics type checking within the given call chain. It essentially figures that it has wandered into old code lacking generic types and gives up.
– Matt Passell
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What is the use of the pipe symbol in YAML?
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What are WSGI and CGI in plain English?
...process each request and uses environment variables, stdin, and stdout to "communicate" with it.
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Python string.join(list) on object array rather than string array
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You could use a list comprehension or a generator expression instead:
', '.join([str(x) for x in list]) # list comprehension
', '.join(str(x) for x in list) # generator expression
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BroadcastReceiver with multiple filters or multiple BroadcastReceivers?
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Are GUID collisions possible?
...f ONE application, it certainly isn't large for the entire world. If every computer on the earth would genereate true GUIDs, they would cause a collision with 1% probability within about one second, assuming they can generate a GUID each nanosecond (which is probably quite realistic these days). So ...
Convert Python dictionary to JSON array
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How can I prevent Visual Studio 2013 from closing my IIS Express app when I end debugging?
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Controlling mouse with Python
... just take off the MOUSEEVENTF_ABSOLUTE flag. for details: msdn.microsoft.com/en-us/library/windows/desktop/…
– Falcon
Dec 28 '12 at 17:14
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Printing newlines with print() in R
...n" to the string passed to cat() to get a newline after your message. E.g. compare the above to the same cat() output:
> cat("File not supplied.\nUsage: ./program F=filename")
File not supplied.
Usage: ./program F=filename>
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> cat("File not supplied.\nUsage: ./program F=filename","\n...