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How to detect page zoom level in all modern browsers?
...iv id=dummyElement>Dummy element to test media queries.</div>
<script>
var mediaQueryMatches = function(property, r) {
var style = document.getElementById('binarysearch');
var dummyElement = document.getElementById('dummyElement');
style.sheet.insertRule('@media (' + property + ...
Maximum Length of Command Line String
... object namespace, so the ObjectAttributes is only used for the security descriptor and making the returned handle inheritable. The command line is passed in the ProcessParameters, which is referenced by the Process Environment Block (PEB). With the old NtCreateProcess, these parameters have to be w...
'Operation is not valid due to the current state of the object' error during postback
...on is not valid due to the current state of the object.
at System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializeDictionary(Int32 depth)
at System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializeInternal(Int32 depth)
at System.Web.Script.Serialization....
Environment variables in Mac OS X
...was never implemented. Instead, you can use another mechanism to execute a script at login, and have that script call launchctl to set up the launchd environment.
/etc/launchd.conf: this is read by launchd when the system starts up and when a user logs in. They affect every single process on the sys...
Restore a postgres backup file using the command line?
...that is what creates the dump itself. It says:
Dumps can be output in script or
archive file formats. Script dumps are
plain-text files containing the SQL
commands required to reconstruct
the database to the state it was
in at the time it was saved. To
restore from such a s...
What is the purpose of the : (colon) GNU Bash builtin?
...
$ ./vecho
$ VERBOSE=1 ./vecho
Verbose echo is ON
This makes for a clean script. This cannot be done with '#'.
Also,
: >afile
is one of the simplest ways to guarantee that 'afile' exists but is 0 length.
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What are the most-used vim commands/keypresses?
... changed from a base version in source control. I have created a small vim script that makes this easy: http://github.com/ghewgill/vim-scmdiff
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How to detect Ctrl+V, Ctrl+C using JavaScript?
How to detect ctrl + v , ctrl + c using Javascript?
17 Answers
17
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Is it possible to focus on a using JavaScript focus() function?
Is it possible to focus on a <div> using JavaScript focus() function?
8 Answers
...
What is the difference between require() and library()?
...rary(package, character.only=T)
}
}
Pro tips:
When used inside the script, you can avoid a dialog screen by specifying the repos parameter of install.packages(), such as
install.packages(package, repos="http://cran.us.r-project.org")
You can wrap require() and library() in suppressPackageS...