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Ruby on Rails. How do I use the Active Record .build method in a :belongs to relationship?
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148
Where it is documented:
From the API documentation under the has_many association in "Module A...
How to throw a C++ exception
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milleniumbug
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answered Dec 12 '11 at 20:53
nsandersnsanders
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Capture key press (or keydown) event on DIV element
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edited Jun 28 '19 at 8:24
answered Jun 30 '10 at 12:56
he...
Difference between jQTouch and jQuery mobile
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4 Answers
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Active
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File.separator vs FileSystem.getSeparator() vs System.getProperty(“file.separator”)?
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145
System.getProperties() can be overridden by calls to System.setProperty(String key, String valu...
How do you specify command line arguments in Xcode 4?
I just upgraded to Xcode 4 and can't find much documentation on it yet, since it just went gold master. I need to specify a command line argument for testing my application.
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angular.min.js.map not found, what is it exactly?
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edited Apr 2 '14 at 16:56
Brad
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answer...
SQL standard to escape column names?
...l Bourque
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answered May 25 '10 at 1:49
Dean HardingDean Harding
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Convert column classes in data.table
...tor w/ 2 levels "A","B": 1 1 1 1 1 2 2 2 2 2
$ Quarter: chr "1" "2" "3" "4" ...
$ value : num -0.838 0.146 -1.059 -1.197 0.282 ...
Using lapply and as.character:
dtnew <- dt[, lapply(.SD, as.character), by=ID]
str(dtnew)
Classes ‘data.table’ and 'data.frame': 10 obs. of 3 variabl...