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IsNothing versus Is Nothing
Does anyone here use VB.NET and have a strong preference for or against using IsNothing as opposed to Is Nothing (for example, If IsNothing(anObject) or If anObject Is Nothing... )? If so, why?
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How to define a function in ghci across multiple lines?
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For guards (like your example), you can just put them all on one line and it works (guards do not care about spacing)
let abs n | n >= 0 = n | otherwise = -n
If you wanted to write your function with multiple definitions that pattern match on the arguments, like this:
fact 0 = 1
fact n =...
How do I create a crontab through a script
...a text file with the job configured, then copy it to the cron spool folder and make sure it has the right permissions (600).
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How to know if other threads have finished?
...ted, or
Unorthodox, for each Thread in question, call setUncaughtExceptionHandler to call a method in your object, and program each Thread to throw an uncaught Exception when it completes, or
Use locks or synchronizers or mechanisms from java.util.concurrent, or
More orthodox, create a listener in y...
throws Exception in finally blocks
Is there an elegant way to handle exceptions that are thrown in finally block?
15 Answers
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How to make a flat list out of list of lists?
...for item in sublist]
As evidence, you can use the timeit module in the standard library:
$ python -mtimeit -s'l=[[1,2,3],[4,5,6], [7], [8,9]]*99' '[item for sublist in l for item in sublist]'
10000 loops, best of 3: 143 usec per loop
$ python -mtimeit -s'l=[[1,2,3],[4,5,6], [7], [8,9]]*99' 'sum(l...
What are these attributes: `aria-labelledby` and `aria-hidden`
...sible Rich Internet Applications (ARIA) defines ways to make Web
content and Web applications (especially those developed with Ajax and
JavaScript) more accessible to people with disabilities.
To be precise for your question, here is what your attributes are called as ARIA attribute states and...
Get all unique values in a JavaScript array (remove duplicates)
...ed to make sure are unique. I found the code snippet below on the internet and it works great until the array has a zero in it. I found this other script here on Stack Overflow that looks almost exactly like it, but it doesn't fail.
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Makefile, header dependencies
...dependency on the object files, when it should obviously be on the sources and had the order of dependency wrong for the two targets, too. That's what I get for typing from memory. Try it now.
– dmckee --- ex-moderator kitten
Aug 23 '11 at 21:15
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Why can't I define a default constructor for a struct in .NET?
...t have a constructor with no parameters. According to this post this is mandated by the CLI specification. What happens is that for every value-type a default constructor is created (by the compiler?) which initialized all members to zero (or null ).
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