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Haskell testing workflow
... picking the right tools.
test-framework provides a one-stop shop to run all your HUnit test-cases and QuickCheck properties all from one harness.
Code coverage is built into GHC in the form of the HPC tool.
Criterion provides some pretty great benchmarking machinery
I'll use as a running exampl...
Cross-browser custom styling for file upload button [duplicate]
...a file upload button to my personal preferences, but I couldn't find any really solid ways to do this without JS. I did find two other questions about this subject, but the answers there either involved JavaScript, or suggested Quirksmode's approach .
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JSON: why are forward slashes escaped?
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JSON doesn't require you to do that, it allows you to do that. It also allows you to use "\u0061" for "A", but it's not required. Allowing \/ helps when embedding JSON in a <script> tag, which doesn't allow </ inside strings, like Seb points out.
Some of ...
How can I initialize an ArrayList with all zeroes in Java?
... That is much better than my solution (even my updated one that actually works hehehe). I would recommend not making a new ArrayList out of it though, and instead simply program to List. That's a decision left to the OP, of course.
– corsiKa
Apr 8 '11 at...
Convert data.frame column format from character to factor
...e to the world of R.
mtcars #look at this built in data set
str(mtcars) #allows you to see the classes of the variables (all numeric)
#one approach it to index with the $ sign and the as.factor function
mtcars$am <- as.factor(mtcars$am)
#another approach
mtcars[, 'cyl'] <- as.factor(mtcars[...
django test app error - Got an error creating the test database: permission denied to create databas
... you will have the same error. You can fix it for mysql with: => GRANT ALL ON *.* TO django@localhost; I originally tried to only GRANT CREATE... but then could not SELECT or DROP the created database. This essentially makes your user a superuser, so be careful.
– mightypi...
How are “mvn clean package” and “mvn clean install” different?
...exactly are the differences between mvn clean package and mvn clean install ? When I run both of these commands, they both seem to do the same thing.
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Bootstrap 3 and 4 .container-fluid with grid adding unwanted padding
...anks a bunch. I'd like to remove it when I'm using a column, though. I really don't want to mess with the core bootstrap css. I suspect there must be a sanctioned way to do this. Any thoughts?
– Tim
Aug 22 '14 at 13:22
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What is a Context Free Grammar?
...y and then the Wikipedia entry on formal grammar, I am left utterly and totally befuddled. Would someone be so kind as to explain what these things are?
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Animation CSS3: display + opacity
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to support all browsers.. ?
– david_adler
Oct 25 '13 at 16:41
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