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“Unsafe JavaScript attempt to access frame with URL…” error being continuously generated in Chrome w

... You could allow cross-domain requests during testing by running chrome with the --disable-web-security command line option. This should probably get rid of the error (and allow FB to spy on your testing ;) ...
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Check for installed packages before running install.packages() [duplicate]

...h several users on different computers. One of its lines contains the install.packages("xtable") command. 16 Answers ...
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Django - limiting query results

...s are lazy. That means a query will hit the database only when you specifically ask for the result. So until you print or actually use the result of a query you can filter further with no database access. As you can see below your code only executes one sql query to fetch only the last 10 items. ...
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Quick unix command to display specific lines in the middle of a file?

... Or more specifically 10 lines before: grep -B 10 ... Or 10 lines after: grep -A 10 ... – Boy Baukema May 21 '12 at 11:14 ...
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How to check if a file is empty in Bash?

I have a file called diff.txt. Want to check if it is empty. Did something like this but couldn't get it working. 10 Answe...
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How to create a database from shell command?

...for something like createdb in PostgreSQL or any other solution that would allow me to create database with a help of a shell command. Any hints? ...
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How to show only next line after the matched one?

... For anyone who really wanted a grep -A2 equivalent (which is what I needed), getline just eats the line and goes on to the next. So what worked for me was literally just awk '/blah/{getline; getline; print}' logfile – A...
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What does a just-in-time (JIT) compiler do?

What does a JIT compiler specifically do as opposed to a non-JIT compiler? Can someone give a succinct and easy to understand description? ...
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How can you find out which process is listening on a port on Windows?

...Note Dane's recommendation for TCPView. It looks very useful! -a Displays all connections and listening ports. -b Displays the executable involved in creating each connection or listening port. In some cases well-known executables host multiple independent components, and in these cases the sequen...
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How to map atan2() to degrees 0-360

...swered Aug 21 '09 at 10:20 erikkallenerikkallen 31k1212 gold badges7575 silver badges114114 bronze badges ...