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How to get UTC timestamp in Ruby?
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time = Time.now.getutc
Rationale: In my eyes a timestamp is exactly that: A point in time. This can be accurately represented with an object. If you need anything else, a scalar value, e.g. seconds since the Unix epoch, 100-ns interval...
What's the difference between getRequestURI and getPathInfo methods in HttpServletRequest?
...this, the method getRequestURL would give you parts 1, 2, 3, 4, 5 and 6).
Now:
part 4 (the context path) is used to select your particular application out of many other applications that may be running in the server
part 5 (the servlet path) is used to select a particular servlet out of many othe...
Factors in R: more than an annoyance?
...ns that are factors using gdata
require(gdata)
drop.levels(dataframe)
I know that it is straightforward to recode levels of a factor and to rejig the labels and there are also wonderful ways to reorder the levels. My brain just cannot remember them and I have to relearn it every time I use it. Rec...
How to convert Milliseconds to “X mins, x seconds” in Java?
...stead of subtracting the minutes, it looks cleaner. However, one needs to know that 1 min = 60 sec to do that... =)
– Per Alexandersson
Feb 12 '12 at 21:15
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How do API Keys and Secret Keys work? Would it be secure if I have to pass my API and secret keys to
...the result is greater than ten, subtracts ten. So f(2) = 5, f(8) = 1, etc. Now, we can make another function, call it f', that goes backwards, by adding seven instead of three. f'(5) = 2, f'(1) = 8, etc.
That's an example of a two-way function and its inverse. Theoretically, any mathematical functi...
C# Sort and OrderBy comparison
...practice, medium size of list (what's medium? ... let's say 1000 items for now) is most interesting. IMHO, sorting lists with 3 items is not very meaningful.
– Stefan Steinegger
Dec 2 '09 at 12:58
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How do I get the path to the current script with Node.js?
...the module or included script. If you are writing a plugin which needs to know the path of the main script it is:
require.main.filename
or, to just get the folder name:
require('path').dirname(require.main.filename)
sha...
“INSERT IGNORE” vs “INSERT … ON DUPLICATE KEY UPDATE”
...nting MERGE was made in 2005, but there's no progress or plan as far as I know. bugs.mysql.com/bug.php?id=9018
– Bill Karwin
Jul 16 '12 at 2:23
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The import org.junit cannot be resolved
... I added JUnit 4 via Properties -> Java Build Path, but every now and then Eclipse still shows me this error, though running the tests is possible without problems. Restarting Eclipse resolves the problem - for a while. Any explanation for this?
– Thomas W
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Setting environment variables on OS X
...en for apps launched via spotlight. So the selected answer is correct for Snow Leopard ;-)
– Louis Jacomet
Jun 9 '10 at 14:54
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