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Jquery mouseenter() vs mouseover()

...arget element contains child elements: http://jsfiddle.net/ZCWvJ/7/ Each time your mouse enters or leaves a child element, mouseover is triggered, but not mouseenter. $('#my_div').bind("mouseover mouseenter", function(e) { var el = $("#" + e.type); var n = +el.text(); el.text(++n); ...
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What happens when a duplicate key is put into a HashMap?

If I pass the same key multiple times to HashMap ’s put method, what happens to the original value? And what if even the value repeats? I didn’t find any documentation on this. ...
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Remove duplicate values from JS array [duplicate]

..., this algorithm is not particularly efficient for large arrays (quadratic time). Hashtables to the rescue function uniq(a) { var seen = {}; return a.filter(function(item) { return seen.hasOwnProperty(item) ? false : (seen[item] = true); }); } This is how it's usually done. T...
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Android Fragment handle back button press [duplicate]

... for me it calls 2 times... – Android Apr 22 '14 at 6:30 2 ...
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How can I get Git to follow symlinks?

...d to work when I tried it. That behavior was however unwanted by me at the time, so I can't give you information beyond that. share | improve this answer | follow ...
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What's the use of session.flush() in Hibernate

... first applied in-memory and synchronized with the database during flush time. The flush operation takes every entity state change and translates it to an INSERT, UPDATE or DELETE statement. The flushing st
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Is it fine to have foreign key as primary key?

...business and system. If your userId is unique and will be unique all the time, you can use userId as your primary key. But if you ever want to expand your system, it will make things difficult. I advise you to add a foreign key in table user to make a relationship with table profile instead of add...
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Automatically capture output of last command into a variable using Bash?

... This is a really hacky solution, but it seems to mostly work some of the time. During testing, I noted it sometimes didn't work very well when getting a ^C on the command line, though I did tweak it a bit to behave a bit better. This hack is an interactive mode hack only, and I am pretty confi...
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How can I find the number of arguments of a Python function?

... Adding to the above, I've also seen that the most of the times help() function really helps For eg, it gives all the details about the arguments it takes. help(<method>) gives the below method(self, **kwargs) method of apiclient.discovery.Resource instance Retrieves a r...
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Uses for the Java Void Reference Type?

... This is implementation specific and may change at any time. There's no guarantee that the class has a no-arg constructor and even if it does have one that may do anything (perhaps System.exit(0)). I tend to write utility classes with a constructor as private Void() { throw new E...