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Get the value of an instance variable given its name
... is:
class Computer
attr_reader :cpus
end
Now you can do Computer.new(4).cpus.
Note that you can reopen any existing class and make a private ivar into a reader. Since an accessor is just a method, you can do Computer.new(4).send(var_that_evaluates_to_cpus)
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How to tell bash that the line continues on the next line
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Paolo
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answered Oct 6 '10 at 9:58
GuillaumeGuilla...
passing several arguments to FUN of lapply (and others *apply)
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It has a DefiningQuery but no InsertFunction element… err
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141
Well when a table is encountered without a PrimaryKey it is treated as a View.
And views show ...
Providing a default value for an Optional in Swift?
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How do I find if a string starts with another string in Ruby?
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How to see full symlink path
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edited Feb 14 '14 at 12:34
answered Apr 15 '13 at 14:32
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What's the difference between io.sockets.emit and broadcast?
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edited Dec 20 '14 at 9:28
Sobiaholic
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a...
Git: how to reverse-merge a commit?
...Ben James
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