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Evaluate if list is empty JSTL
I've been trying to evaluate if this array list is empty or not but none of these have even compiled:
2 Answers
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mongodb find by multiple array items
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Depends on whether you're trying to find documents where words contains both elements (text and here) using $all:
db.things.find({ words: { $all: ["text", "here"] }});
or either of them (text or here) using $in:
db.things.find({ words: { $in:...
GROUP_CONCAT ORDER BY
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You can use ORDER BY inside the GROUP_CONCAT function in this way:
SELECT li.client_id, group_concat(li.percentage ORDER BY li.views ASC) AS views,
group_concat(li.percentage ORDER BY li.percentage ASC)
FROM li GROUP BY cli...
Git number of commits per author on all branches
I'd like to get the number of commits per author on all branches. I see that
1 Answer
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Interfacing with structs and anonymous unions with c2hs
How would one go about encoding this chunk of C code in a .chs file so that c2hs can transform it to something relatively nice?
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Truncate a string straight JavaScript
I'd like to truncate a dynamically loaded string using straight JavaScript. It's a url, so there are no spaces, and I obviously don't care about word boundaries, just characters.
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Finding quaternion representing the rotation from one vector to another
I have two vectors u and v. Is there a way of finding a quaternion representing the rotation from u to v?
7 Answers
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Access “this” from Java anonymous class
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answered Jul 5 '09 at 14:07
Mykola GolubyevMykola Golubyev
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What does the X-SourceFiles header do?
Using a FileStreamResult in ASP.NET MVC 3, I get a response header like
1 Answer
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