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Get the value of an instance variable given its name
...tance_variable_get to get at @cpus. But if you're doing this, you probably mean for @cpus to be public. What you should do 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 a...
In plain English, what does “git reset” do?
... use is blowing away your work but not switching commits: git reset --hard means git reset --hard HEAD, i.e. don't change the branch but get rid of all local changes. The other is simply moving a branch from one place to another, and keeping index/work tree in sync. This is the one that can really m...
Android Fragments: When to use hide/show or add/remove/replace?
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Hi, when you say detach from window, do you mean onDetach() callback will be called ? I experimented that, it seems it is not the case.
– GingerJim
Jun 13 '13 at 16:41
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Regex to match a digit two or four times
... "It would match 3 digits" is not quite accurate. I think you mean "It would match a 2-digit subsequence of a 3-digit sequence."
– Jean-François Corbett
Apr 30 at 11:27
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Difference between double and single curly brace in angular JS?
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Did you mean {{}} degrades performance? Can you please provide a source to prove that?
– Don D
Aug 31 '18 at 9:21
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Why does TestInitialize get fired for every test in my Visual Studio unit tests?
...o return the environment to a known state after a test has run. This might mean the deletion of files in folders or the return of a database to a known state. An example of this is to reset an inventory database to an initial state after testing a method that is used in an order-entry application.
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C++ const map element access
...at() with in VS2013 on a project set to use VS2010 toolkit. I thought that meant I wasn't using C++11... But yet it compiles... ??
– thomthom
Dec 7 '13 at 22:27
1
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What does [STAThread] do?
...hat was an entirely thread agnostic system (the windows message pump) as a means to synchronize/serialise code execution in COM apartments.
– AnthonyWJones
Sep 1 '09 at 8:08
1
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bower command not found
...it will be just installed on the folder where you executed the command. -g means global and it also creates the required links for modules that can be executed as system commands, bower, grunt-cli, even npm are clear examples of this.
– Erick Ruiz de Chavez
Dec...
What does the restrict keyword mean in C++?
I was always unsure, what does the restrict keyword mean in C++?
6 Answers
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