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jQuery deferreds and promises - .then() vs .done()

I've been reading about jQuery deferreds and promises and I can't see the difference between using .then() & .done() for successful callbacks. I know Eric Hynds mentions that .done() and .success() map to the same functionality but I'm guessing so does .then() as all the callbacks are al...
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Is there a difference between foreach and map?

...n a particular language, but is there a difference between a map operation and a foreach operation? Or are they simply different names for the same thing? ...
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Store boolean value in SQLite

...an storage class. Instead, Boolean values are stored as integers 0 (false) and 1 (true). share | improve this answer | follow | ...
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What is a non-capturing group in regular expressions?

How are non-capturing groups, i.e. (?:) , used in regular expressions and what are they good for? 15 Answers ...
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How to use R's ellipsis feature when writing your own function?

...nts. For example, the function data.frame takes any number of arguments, and each argument becomes the data for a column in the resulting data table. Example usage: ...
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How to sleep for five seconds in a batch file/cmd [duplicate]

...ds, such as taking an image being displayed by the webcam. (Run the script and smile at the camera, for example.) 30 Answer...
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Covariance, Invariance and Contravariance explained in plain English?

Today, I read some articles about Covariance, Contravariance (and Invariance) in Java. I read the English and German Wikipedia article, and some other blog posts and articles from IBM. ...
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Why does integer division in C# return an integer and not a float?

Does anyone know why integer division in C# returns an integer and not a float? What is the idea behind it? (Is it only a legacy of C/C++?) ...
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How can I repeat a character in Bash?

... You can use: printf '=%.0s' {1..100} How this works: Bash expands {1..100} so the command becomes: printf '=%.0s' 1 2 3 4 ... 100 I've set printf's format to =%.0s which means that it will always print a single = no matter what argument it is given. Therefore it prints 100 =s. ...
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iOS 6 apps - how to deal with iPhone 5 screen size? [duplicate]

..., then definitely consider using Auto Layout. It removes all fixed layout handling and instead uses constraints to lay things out. Nothing will be hard-coded, and your life will become a lot simpler. However, if you have to support older iOS's, then it really depends on your application. A majority...