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An efficient way to transpose a file in Bash
...];
}
print str
}
}' file
output
$ more file
0 1 2
3 4 5
6 7 8
9 10 11
$ ./shell.sh
0 3 6 9
1 4 7 10
2 5 8 11
Performance against Perl solution by Jonathan on a 10000 lines file
$ head -5 file
1 0 1 2
2 3 4 5
3 6 7 8
4 9 10 11
1 0 1 2
$ wc -l < file
10000
$ time perl ...
.prop() vs .attr()
... authoritative but somewhat dry word on the subject, there's the specs: DOM4, HTML DOM, DOM Level 2, DOM Level 3. Mozilla's DOM documentation is valid for most modern browsers and is easier to read than the specs, so you may find their DOM reference helpful. There's a section on element properties.
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How do I get the value of text input field using JavaScript?
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14 Answers
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Recommended method for escaping HTML in Java
...ion 3:
import static org.apache.commons.lang3.StringEscapeUtils.escapeHtml4;
// ...
String escaped = escapeHtml4(source);
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Please explain some of Paul Graham's points on Lisp
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4 Answers
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Undefined reference to vtable
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431
The GCC FAQ has an entry on it:
The solution is to ensure that all virtual methods that are n...
What should main() return in C and C++?
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Disable firefox same origin policy
...e, the addon is installed after you click install and you can skip to step 4.
If you downloaded the xpi you can jump to step 3. If you downloaded the zip from GitHub, go to step 2.
2) Building the xpi
You need to extract the zip, get inside the "cors-everywhere-firefox-addon-master" folder, selec...
Getting LaTeX into R Plots
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48
Here's an example using ggplot2:
q <- qplot(cty, hwy, data = mpg, colour = displ)
q + xlab(...
What's the Best Way to Shuffle an NSMutableArray?
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74
You don't need the swapObjectAtIndex method. exchangeObjectAtIndex:withObjectAtIndex: already ex...