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Custom error pages on asp.net MVC3
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201
Here's an example of how I handle custom errors. I define an ErrorsController with actions han...
C++ include and import difference
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Head GeekHead Geek
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Making HTTP Requests using Chrome Developer tools
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12 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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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[["...
Is there any difference between the `:key => “value”` and `key: “value”` hash notations?
...ese are legal:
h = { :$in => array }
h = { :'a.b' => 'c' }
h[:s] = 42
but these are not:
h = { $in: array }
h = { 'a.b': 'c' } # but this is okay in Ruby2.2+
h[s:] = 42
You can also use anything as a key with => so you can do this:
h = { C.new => 11 }
h = { 23 => 'pancakes hous...
Will the base class constructor be automatically called?
Would the age of customer be 2? It seems like the base class's constructor will be called no matter what. If so, why do we need to call base at the end sometimes?
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Eclipse count lines of code
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answered Aug 3 '11 at 10:25
aliopialiopi
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