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What is meant by Scala's path-dependent types?
...pes alone.
This might sound like dependent types, but it is more limited. For example, the type of occupied is dependent on the value of Board. Above, the last line doesn't work because the type of c2 is b2.Coordinate, while occupied's type is Set[b1.Coordinate]. Note that one can use another ident...
jQuery exclude elements with certain class in selector
I want to setup a click event trigger in jQuery for certain anchor tags.
3 Answers
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Getting the return value of Javascript code in Selenium
I'm using Selenium2 for some automated tests of my website, and I'd like to be able to get the return value of some Javascript code. If I have a foobar() Javascript function in my webpage and I want to call that and get the return value into my Python code, what can I call to do that?
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How do you use “
... unique parameters) that are never used within the function, but just used for caching and in case I need to recover later on (or do some meta-analysis on the intermediate results).
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Is there a JavaScript / jQuery DOM change listener?
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For a long time, DOM3 mutation events were the best available solution, but they have been deprecated for performance reasons. DOM4 Mutation Observers are the replacement for deprecated DOM3 mutation events. They are current...
How to grep (search) committed code in the Git history
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To search for commit content (i.e., actual lines of source, as opposed to commit messages and the like), you need to do:
git grep <regexp> $(git rev-list --all)
git rev-list --all | xargs git grep <expression> will work ...
How to suppress warnings globally in an R Script
...turn warnings back on, use
options(warn=0)
(or whatever your default is for warn, see this answer)
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What does it mean when MySQL is in the state “Sending data”?
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In this state:
The thread is reading and processing rows for a
SELECT statement, and sending data to the client.
Because operations occurring during this this state tend to perform
large amounts of disk access (reads).
That's why it takes more time to complete and so is...
Checking for the correct number of arguments
How do i check for the correct number of arguments (one argument). If somebody tries to invoke the script without passing in the correct number of arguments, and checking to make sure the command line argument actually exists and is a directory.
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Collections.emptyList() returns a List?
I'm having some trouble navigating Java's rule for inferring generic type parameters. Consider the following class, which has an optional list parameter:
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