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How do you downgrade rubygems?
...2 to 1.4.2 because of old rails version:
sudo gem update --system 1.4.2
More information about downgrading/upgrading rubygems: https://github.com/rubygems/rubygems/blob/master/UPGRADING.md
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How do I see the current encoding of a file in Sublime Text?
...le the following command:
view.encoding()
In case you want to something more intrusive, there's a option to create an shortcut that executes the following command:
sublime.message_dialog(view.encoding())
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What is the difference between “text” and new String(“text”)?
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What's the difference setting Embed Interop Types true and false in Visual Studio?
... embedding it all it only creates the stuff you actually use in code.
Read more in Scott Hanselman's blog post about it and other VS improvements here.
As for whether it is advised or not, I'm not sure as I don't need to use this feature. A quick web search yields a few leads:
Check your Embed Inte...
Django rest framework, use different serializers in the same ModelViewSet
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Exclude a sub-directory using find
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What can I do with a moved-from object?
...That suggests that whilst the object might not be capable of doing much anymore, all of its member functions should still exhibit defined behaviour — including operator= — and all its members in a defined state- and it still requires destruction. The Standard gives no specific definitions becaus...
Efficient paging in SQLite with millions of records
...mn > LastValue
ORDER BY SomeColumn
LIMIT 100;
(This is explained with more detail on the SQLite wiki.)
When you have multiple sort columns (and SQLite 3.15 or later), you can use a row value comparison for this:
SELECT *
FROM MyTable
WHERE (SomeColumn, OtherColumn) > (LastSome, LastOther)
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What is the purpose of willSet and didSet in Swift?
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