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What does the @ symbol represent in objective-c?

I'm learning objective-c and keep bumping into the @ symbol. It is used in different scenarios, for example at the start of a string or to synthesise accessor methods. ...
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When serving JavaScript files, is it better to use the application/javascript or application/x-javas

The whole question fits in the title. And to add some context: I'm not asking what is the best according to what the specs are saying, but rather what works the best given the mix of browsers deployed nowadays. ...
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JPA: How to have one-to-many relation of the same Entity type

... Yes, this is possible. This is a special case of the standard bidirectional @ManyToOne/@OneToMany relationship. It is special because the entity on each end of the relationship is the same. The general case is detailed in Section 2.10.2 of the JPA 2.0 spec. Here's a worked exa...
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Disable copy constructor

... You can make the copy constructor private and provide no implementation: private: SymbolIndexer(const SymbolIndexer&); Or in C++11, explicitly forbid it: SymbolIndexer(const SymbolIndexer&) = delete; ...
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How to handle floats and decimal separators with html5 input type number

...y used in regions where decimal separator is comma, not dot, so I need to handle both decimal separators. 10 Answers ...
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How to compare type of an object in Python?

...ty of details of why checking the type of an object is usually a bad idea, and what you probably should be doing instead. – Jeff Shannon Apr 2 '09 at 9:28 2 ...
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MySQL vs MySQLi when using PHP [closed]

Which is better, MySQL or MySQLi? And why? Which should I use? 6 Answers 6 ...
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How to properly create an SVN tag from trunk?

...ation to use; it lets Subversion keep track of the history of these files, and also (I assume) store them much more efficiently. In my experience, it's best to do copies ("snapshots") of entire projects, i.e. all files from the root check-out location. That way the snapshot can stand on its own, as...
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Ways to implement data versioning in MongoDB

...nt data versioning in MongoDB. (I've asked similar question regarding Cassandra . If you have any thoughts which db is better for that please share) ...
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Can you issue pull requests from the command line on GitHub?

... UPDATE: The hub command is now an official github project and also supports creating pull requests ORIGINAL: Seems like a particularly useful thing to add to the hub command: http://github.com/defunkt/hub or the github gem: http://github.com/d...