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What is the difference between HTML tags and ?

I would like to ask for some simple examples showing the uses of <div> and <span> . I've seen them both used to mark a section of a page with an id or class , but I'm interested in knowing if there are times when one is preferred over the other. ...
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UIRefreshControl - beginRefreshing not working when UITableViewController is inside UINavigationCont

I've setup a UIRefreshControl in my UITableViewController (which is inside a UINavigationController) and it works as expected (i.e. pull down fires the correct event). However, if I programmatically invoke the beginRefreshing instance method on the refresh control like: ...
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Swapping column values in MySQL

I have a MySQL table with coordinates, the column names are X and Y. Now I want to swap the column values in this table, so that X becomes Y and Y becomes X. The most apparent solution would be renaming the columns, but I don't want to make structure changes since I don't necessarily have permission...
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Git On Custom SSH Port

My VPS provider recommends that I leave my SSH port to the custom port number they assign it by default (not 22). The thing is the while I know I can give the port number when create a remote config, it seems like I can't do the same when doing a git clone. I am using gitolite so I clone commands ...
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Should I use .done() and .fail() for new jQuery AJAX code instead of success and error

I have coded like this: 4 Answers 4 ...
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jQuery get specific option tag text

All right, say I have this: 21 Answers 21 ...
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How to track down a “double free or corruption” error

When I run my (C++) program it crashes with this error. 8 Answers 8 ...
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Draw line in UIView

I need to draw a horizontal line in a UIView. What is the easiest way to do it. For example, I want to draw a black horizontal line at y-coord=200. ...
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LINQ Contains Case Insensitive

This code is case sensitive, how to make it case insensitive? 11 Answers 11 ...
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Switch Git branch without files checkout

Is it possible in Git to switch to another branch without checking out all files? 11 Answers ...