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R object identification
...n producing output for which I don't understand the output data type. I'm expecting a list and it ends up being a list of lists or a data frame or something else. What's a good method or workflow for figuring out the output data type when first using a function?
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Center content of UIScrollView when smaller
...iew *)scrollView
{
UIView *subView = [scrollView.subviews objectAtIndex:0];
CGFloat offsetX = MAX((scrollView.bounds.size.width - scrollView.contentSize.width) * 0.5, 0.0);
CGFloat offsetY = MAX((scrollView.bounds.size.height - scrollView.contentSize.height) * 0.5, 0.0);
subView.c...
Open directory dialog
...ders. Overall, I'd give it a 0 out of 5 and recommend nobody ever use it. Except that there was no reasonable alternative until Windows Vista came out with the much better folder dialog. There are good free libraries that show the good dialog on Vista+, and the bad one on XP.
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How to concatenate string variables in Bash
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Does there have to be a space in your first example? Is it possible to do something like foo="$fooworld"? I would assume not...
– nonsensickle
Jan 30 '14 at 21:25
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Git resolve conflict using --ours/--theirs for all files
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Just grep through the working directory and send the output through the xargs command:
grep -lr '<<<<<<<' . | xargs git checkout --ours
or
grep -lr '<<<<<<<' . | xargs git checkout --theirs
How this works: grep will search through every file in the ...
Spring vs EJB. Can Spring replace EJB? [closed]
... to replace the requirement of using EJB. Can anyone tell me what are the extra advantages of using EJB?
4 Answers
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How to set limits for axes in ggplot2 R plots?
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Basically you have two options
scale_x_continuous(limits = c(-5000, 5000))
or
coord_cartesian(xlim = c(-5000, 5000))
Where the first removes all data points outside the given range and the second only adjusts the visible area. In most cases you would not s...
Hidden Features of C#? [closed]
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String concatenation in Ruby
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I'm not very experienced with ruby. But generally in cases where you concatenate lots of strings you often can gain performance by appending the strings to an array and then at the end put the string together atomically. Then << coul...
Convert PHP closing tag into comment
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The easiest way
Create a separate variable to hold your regular expression; this way you can simply comment out the preg_replace() statement:
$re = '#<br\s*/?>(?:\s*<br\s*/?>)+#i';
// $string = preg_replace($re, '<br />', $string);
Fix using character classes
To fix l...