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Center a 'div' in the middle of the screen, even when the page is scrolled up or down?

...ead that this is not the most responsive solution (but a perfect solution for the problem above). Check getbootstrap.com/javascript/#modals and look with your DevTools to get some nice ideas about working with your popups/modals. – Cas Bloem Jun 13 '14 at 9:02 ...
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Error: Cannot pull with rebase: You have unstaged changes

I have started collaborating with a few friends on a project & they use the heroku git repository. 8 Answers ...
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Handling optional parameters in javascript

I have a static javascript function that can take 1, 2 or 3 parameters: 12 Answers 12 ...
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Catching error codes in a shell pipe

...til the first is known to be successful, then you probably need to use temporary files. The simple version of that is: tmp=${TMPDIR:-/tmp}/mine.$$ if ./a > $tmp.1 then if ./b <$tmp.1 >$tmp.2 then if ./c <$tmp.2 then : OK else echo "./c failed" 1>&...
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High performance fuzzy string comparison in Python, use Levenshtein or difflib [closed]

I am doing clinical message normalization (spell check) in which I check each given word against 900,000 word medical dictionary. I am more concern about the time complexity/performance. ...
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How to edit log message already committed in Subversion?

... Essentially you have to have admin rights (directly or indirectly) to the repository to do this. You can either configure the repository to allow all users to do this, or you can modify the log message directly on the server. See this part of the Subversion FAQ (emphasis mi...
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Why is a ConcurrentModificationException thrown and how to debug it

...n that is being iterated over is modified by anything other than the Iterator itself. Iterator it = map.entrySet().iterator(); while (it.hasNext()) { Entry item = it.next(); map.remove(item.getKey()); } This will throw a ConcurrentModificationException when the it.hasNext() is called the se...
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What is the difference between association, aggregation and composition?

... For two objects, Foo and Bar the relationships can be defined Association - I have a relationship with an object. Foo uses Bar public class Foo { void Baz(Bar bar) { } }; Composition - I own an object and I am ...
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How do I detect a click outside an element?

...g stopEventPropagation() is something that should be avoided as it breaks normal event flow in the DOM. See this article for more information. Consider using this method instead Attach a click event to the document body which closes the window. Attach a separate click event to the container which ...
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When and how should I use a ThreadLocal variable?

... avoid synchronizing access to that object (I'm looking at you, SimpleDateFormat). Instead, give each thread its own instance of the object. For example: public class Foo { // SimpleDateFormat is not thread-safe, so give one to each thread private static final ThreadLocal<SimpleDateFor...