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Add border-bottom to table row
I have a table of 3 by 3. I need a way to add a border for the bottom of every row tr and give it a specific color.
16 An...
How to add 10 days to current time in Rails
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Use
Time.now + 10.days
or even
10.days.from_now
Both definitely work. Are you sure you're in Rails and not just Ruby?
If you definitely are in Rails, where are you trying to run this from? Note that Active Support has to be loaded.
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Where is Vagrant saving changes to the VM?
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Vagrant imports the base box which is located at ~/.vagrant.d/boxes/, like you said.
This is where the base boxes are kept. It uses it to start a VM from the clean state. When importing a VM, the responsibility of where to store data fi...
R - Markdown avoiding package loading messages
...ve been using Knitr via R-Studio, and think it is pretty neat. I have a minor issue though. When I source a file in an R-Chunk, the knitr output includes external comments as follows:
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Is there a difference between “raise exception()” and “raise exception” without parenthesis?
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The short answer is that both raise MyException and raise MyException() do the same thing. This first form auto instantiates your exception.
The relevant section from the docs says, "raise evaluates the first expression as the ex...
Why does the C# compiler go mad on this nested LINQ query?
...llowing code and you'll find that compiler takes >3 GB of RAM (all free memory on my machine) and very long time to compile (actually I get IO exception after 10 minutes).
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Converting user input string to regular expression
...un with the specified arguments. Naturally there will be extra text boxes for the extra arguments to replace and such.
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Git on Windows: How do you set up a mergetool?
I've tried msysGit and Git on Cygwin. Both work just fine in and of themselves and both run gitk and git-gui perfectly.
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Side-by-side plots with ggplot2
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Any ggplots side-by-side (or n plots on a grid)
The function grid.arrange() in the gridExtra package will combine multiple plots; this is how you put two side by side.
require(gridExtra)
plot1 <- qplot(1)
plot2 <- qplot(1)
grid.arrange(plot1,...
Green Bars in Visual Studio 2010
...ndering what these greens things are in Visual Studio 2010. What are they for? They look pretty random but of course they have to have some meaning. Can any one tell me?
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