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What is a user agent stylesheet?
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Resetting styles can cause weird results with form fields, particularly around field borders or multi-part elements like type="file".
– treat your mods well
Oct 28 '14 at 19:03
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What's the fastest way to merge/join data.frames in R?
...child sys.child
3 data.table 1 0.34 1.000000 0.31 0.01 NA NA
2 plyr 1 0.44 1.294118 0.39 0.02 NA NA
1 merge 1 1.17 3.441176 1.10 0.04 NA NA
4 sqldf 1 3.34 9...
How do I convert seconds to hours, minutes and seconds?
...multiple days: str(datetime.timedelta(seconds=60*60*24+1)) = '1 day, 0:00:01'
– hyprnick
Dec 29 '14 at 15:37
4
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How to pass in password to pg_dump?
... will run as. See Postgresql documentation libpq-pgpass for details of the format (including the last paragraph where it explains it will be ignored if you don't set the mode to 0600).
share
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impro...
Why is this program erroneously rejected by three C++ compilers?
...end-of-line indicators) if necessary.
Your compiler doesn't support that format (aka cannot map it to the basic source character set), so it cannot move into further processing stages, hence the error. It is entirely possible that your compiler support a mapping from image to basic source characte...
When to use single quotes, double quotes, and backticks in MySQL
...ts DATE and DATETIME literal values to be single-quoted as strings like '2001-01-01 00:00:00'. Consult the Date and Time Literals documentation for more details, in particular alternatives to using the hyphen - as a segment delimiter in date strings.
So using your example, I would double-quote the P...
How to convert a unix timestamp (seconds since epoch) to Ruby DateTime?
...current system timezone):
$ date +%s
1318996912
$ irb
ruby-1.9.2-p180 :001 > require 'date'
=> true
ruby-1.9.2-p180 :002 > Time.at(1318996912).to_datetime
=> #<DateTime: 2011-10-18T23:01:52-05:00 (13261609807/5400,-5/24,2299161)>
Further update (for UTC):
ruby-1.9.2-p180...
Split Java String by New Line
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The comment by @stivlo is misinformation, and it is unfortunate that it has so many upvotes. As @ Raekye pointed out, OS X (now known as macOS) has used \n as its line separator since it was released in 2001. Mac OS 9 was released in 1999, and I have nev...
Change the maximum upload file size
I have a website hosted on a PC I have no access to. I have an upload form allowing people to upload mp3 files up to 30MB big. My server side script is done in PHP.
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sed or awk: delete n lines following a pattern
...mn, and in the 2nd the number of lines to skip. The first sed command transforms the file into a sed script that performs the corresponding matching and skipping; that script is provided via -f and stdin (-) to the 2nd sed command. The 2nd sed command operates on a sample ad-hoc input file formed fr...