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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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How to deal with “data of class uneval” error from ggplot2?
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Groovy / grails how to determine a data type?
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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>
and
> cat("File not supplied.\nUsage: ./program F=filename","\n...
Visual studio long compilation when replacing int with double
My copy of VS2013 Ultimate compiles this code for 60+ seconds:
2 Answers
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In Django, how does one filter a QuerySet with dynamic field lookups?
...ame', 'endswith'): 'Z'
}
Person.objects.filter(**kwargs)
This is a very common and useful Python idiom.
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Is AngularJS just for single-page applications (SPAs)?
...sed for full pages - it can be integrated into an existing system to build components, i.e. a complex widget or plugin inside a legacy application.
– Alex Osborn
Mar 5 '13 at 21:06
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optional parameters in SQL Server stored proc?
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How to get the path of current worksheet in VBA?
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