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Check for installed packages before running install.packages() [duplicate]
...al users on different computers. One of its lines contains the install.packages("xtable") command.
16 Answers
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Is Dvorak typing appropriate for programming? [closed]
I'm always looking for ways to be more productive, and I've been reading a lot about typing using a Dvorak keyboard.
12 A...
How do I fire an event when a iframe has finished loading in jQuery?
...tty certain that it cannot be done.
Pretty much anything else than PDF works, even Flash. (Tested on Safari, Firefox 3, IE 7)
Too bad.
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Container View Controller Examples [closed]
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Max MacLeod
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answered Oct 13 '11 at 18:42
hypercrypthyperc...
In .NET, which loop runs faster, 'for' or 'foreach'?
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Patrick Smacchia blogged about this last month, with the following conclusions:
for loops on List are a bit more than 2 times cheaper than foreach
loops on List.
Looping on array is around 2 times cheaper than looping on...
Why doesn't delete set the pointer to NULL?
...pointer to NULL after delete is not part of the standard. If this gets taken care of then many of the crashes due to an invalid pointer would not occur. But having said that I can think of couple of reasons why the standard would have restricted this:
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Grabbing the href attribute of an A element
Trying to find the links on a page.
10 Answers
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In Android EditText, how to force writing uppercase?
...nformation. But I need to force user to write in uppercase letters.
Do you know a function to do that?
23 Answers
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Sublime - delete all lines containing specific value
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You can do a regular expression search-and-replace:
Click Find > Replace.
Ensure that the Regular Expression button is pressed.
For the Find What field, put:
^.*No records to send and/or not connected.*\n
Leave the Replace With field empty.
Click Replace All
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SQL Server, convert a named instance to default instance?
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As far as I know, no. One reason is the folder structure on the hard drive; they will have a name like MSSQL10.[instancename]
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