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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:...
Why does the C++ map type argument require an empty constructor when using []?
Not a major issue, just annoying as I don't want my class to ever be instantiated without the particular arguments.
5 Answe...
Omitting the first line from any Linux command output
I have a requirement where i'd like to omit the 1st line from the output of ls -latr "some path" Since I need to remove total 136 from the below output
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Rsync copy directory contents but not directory itself
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Try rsync -av ~/foo/ user@remote.com:/var/www/bar/
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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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How can I count the number of matches for a regex?
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matcher.find() does not find all matches, only the next match.
Solution for Java 9+
long matches = matcher.results().count();
Solution for Java 8 and older
You'll have to do the following. (Starting from Java 9, there is a nicer solution)
int count = 0;
while (matcher.find())
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Remove multiple attributes with jQuery's removeAttr
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Yes :
.removeAttr('height align style')
From the documentation :
as of version 1.7, it can be a space-separated list of attributes.
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