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How do you create a random string that's suitable for a session ID in PostgreSQL?
...tgreSQL provides a type that is exactly 128 bits. Unlike text and varchar, etc which store as a varlena which has overhead for the length of the string.
PostgreSQL nifty UUID comes with some default operators, castings, and features.
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git diff file against its last change
... (in your example this will be 123abc) or HEAD^^ (456def in your example), etc ...
So the answer to your question is:
git diff HEAD^^ myfile
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Why does CSS work with fake elements?
...pecific version of HTML. CSS can be used on HTML, XHTML, XML, SGML, XAML, etc. Of course, you need something that will render each of these document types that will also apply styling. By definition, CSS does not know / understand / care about specific markup language tags. So, the tags may be "...
Abstract functions in Swift Language
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So I have a getComments method on the parent delegate. There's a handful of comment types, and I want the ones relevant to each object. So, I want the subclasses to not compile when I do delegate.getComments() if I don't override that m...
Linq to SQL how to do “where [column] in (list of values)”
... "Jupiter",
"Saturn",
"Mercury",
// etc.
};
ICollection<String> coll = arr;
String[] arrStrFiltered = coll.Where(str => hs.Contains(str)).ToArray();
HashSet is basically almost to O(1) so your complexity remains O(n).
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How to use ADB to send touch events to device using sendevent command?
...400, MonkeyDevice.DOWN_AND_UP)
You can also do a drag, start activies etc.
Have a look at the api for MonkeyDevice.
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How to create SBT project with IntelliJ Idea?
... it into a bit or an idea with refactoring, debugging support, navigation, etc. It's not nowhere near as good as Eclipse (Java), but unless the scala plugins work better it's the best we have.
Until the Scala development environments get up to snuff (Eclipse or IntelliJ) I'm not going to bother. ...
instanceof Vs getClass( )
I see gain in performance when using getClass() and == operator over instanceOf operator.
4 Answers
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ARC and bridged cast
...etting an object out of a dictionary and then removing it before using it, etc.)
– monkeydom
Apr 13 '12 at 16:16
3
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NUnit vs. xUnit
...l its operation (number of threads, threads per class, tests per assembly, etc.
Check out this sample solution with two test projects, one using xUnit the other NUnit.
You can read more about parallel tests in xUnit here.
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