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Where do gems install?
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216
Look at your gem environment.
In a terminal run gem env
You should see an entry INSTALLATION...
How to test if list element exists?
...to check that the name is actually defined in the list:
foo <- list(a=42, b=NULL)
foo
is.null(foo[["a"]]) # FALSE
is.null(foo[["b"]]) # TRUE, but the element "exists"...
is.null(foo[["c"]]) # TRUE
"a" %in% names(foo) # TRUE
"b" %in% names(foo) # TRUE
"c" %in% names(foo) # FALSE
...and foo[["...
Resolve Type from Class Name in a Different Assembly
...d assembly name like such:
Type.GetType("System.String, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089");
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How to make a element expand or contract to its parent container?
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answered Jan 18 '12 at 23:41
robertcrobertc
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C++ include and import difference
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Head GeekHead Geek
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Custom error pages on asp.net MVC3
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Here's an example of how I handle custom errors. I define an ErrorsController with actions han...
Why is the .bss segment required?
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answered Mar 2 '12 at 15:11
LundinLundin
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deny directory listing with htaccess
...ood/Test1/ , /public_html/Davood/Test1/Test/ , /public_html/Davood/Test2/ , ...
9 Answers
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Android Preferences: How to load the default values when the user hasn't used the preferences-screen
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edited Jun 20 at 10:20
Gk Mohammad Emon
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