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What do you call the -> operator in Ruby?
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In Ruby Programming Language ("Methods, Procs, Lambdas, and Closures"), a lambda defined using -> is called lambda literal.
succ = ->(x){ x+1 }
succ.call(2)
The code is equivalent to the following one.
succ = lambda { ...
How do I activate C++ 11 in CMake?
...target_compile_features() you can also specify the C++ standard explicitly by setting the CMake properties
CXX_STANDARD
and
CXX_STANDARD_REQUIRED for your CMake target.
See also my more detailed answer.
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Specifying colClasses in the read.csv
... of the other variables, and they are not automatically recognized as such by read.table.
– tchakravarty
Dec 13 '14 at 18:00
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How can I determine if a String is non-null and not only whitespace in Groovy?
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.NET Process.Start default directory?
...ry is %SYSTEMROOT%\system32.
You can determine the value of %SYSTEMROOT% by using:
string _systemRoot = Environment.GetEnvironmentVariable("SYSTEMROOT");
Here is some sample code that opens Notepad.exe with a working directory of %ProgramFiles%:
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using System.Diagnostics;
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ProcessStar...
Java: Multiple class declarations in one file
... @bvdb: (And there are lots of things which are bad practice but allowed by the spec. I would urge people not to write public int[] foo(int x)[] { return new int[5][5]; } as well, even though that's valid.)
– Jon Skeet
Apr 6 '15 at 15:50
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Are there any naming convention guidelines for REST APIs? [closed]
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@Dennis Windows server filesystems are case insensitive by default, unless I'm sorely mistaken technet.microsoft.com/en-us/library/cc725747.aspx
– samspot
Aug 14 '12 at 20:30
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Update value of a nested dictionary of varying depth
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@Wlerin , it still works; d will have become a Mapping by that point. Here's a test case with multiple keys: update({'A1': 1, 'A2':2}, {'A1': {'B1': {'C1': 3, 'C2':4}, 'B2':2}, 'A3':5}). Do you have an example that doesn't do what you want?
– bscan
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Is asynchronous jdbc call possible?
...nt requests this will spawn a very large number of threads.
Scala actors by default are event-based (not thread-based) - continuation scheduling allows creating millions of actors on a standard JVM setup.
If you're targeting Java, Akka Framework is an Actor model implementation that has a good A...
If I have ACCESS_FINE_LOCATION already, can I omit ACCESS_COARSE_LOCATION?
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