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How do I list all versions of a gem available at a remote site?
...gem list ^rhc$ and the "--remote" and "--all" flags can be abbreviated and combined for gem list ^rhc$ -ra
– Joshua Cheek
Feb 5 '12 at 4:19
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Comparator.reversed() does not compile using lambda
...he list, but only works using method reference, with lambda expression the compiler gives an error:
2 Answers
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postgresql COUNT(DISTINCT …) very slow
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Difference between Rebuild and Clean + Build in Visual Studio
...ects (possibly in parallel). This difference in sequencing of events can become significant when inter-project dependencies come into play.
All three actions correspond to MSBuild targets. So a project can override the Rebuild action to do something completely different.
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How should I copy Strings in Java?
...te anything in the String pool of the JVM. Only string litterals and those commited to the pool via intern() are in the pool.
– Snicolas
May 15 '12 at 20:12
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Using Moq to mock an asynchronous method for a unit test
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You're creating a task but never starting it, so it's never completing. However, don't just start the task - instead, change to using Task.FromResult<TResult> which will give you a task which has already completed:
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.Returns(Task.FromResult(new HttpResponseMessage(System.Net...
Why does PostgreSQL perform sequential scan on indexed column?
...current one- an index scan fetches one page at once. (A bitmap scan does a compromise between the two, you usually see that appearing in a plan for queries that aren't selective enough for an index scan, but still not so unselective as to merit a full table scan)
– araqnid
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Difference between val() and text()
... matched elements:
.text()
The result is a string that contains
the combined text contents of all
matched elements. This method works on
both HTML and XML documents. Cannot be
used on input elements. For input
field text use the val attribute.
.val()
Get the content of the value...
How do I drop table variables in SQL-Server? Should I even do this?
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