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What's the difference between '$(this)' and 'this'?

I am currently working through this tutorial: Getting Started with jQuery 7 Answers 7...
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What is the Comonad typeclass in Haskell?

What is the Comonad typeclass in Haskell? As in Comonad from Control.Comonad in the comonad package (explanations of any other packages that provide a Comonad typeclass are also welcome). I've vaguely heard about Comonad, but all I really know about it is that is provides extract :: w a -> a ,...
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How do I parallelize a simple Python loop?

This is probably a trivial question, but how do I parallelize the following loop in python? 13 Answers ...
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remove all variables except functions

I have loaded in a R console different type of objects. I can remove them all using 5 Answers ...
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How to check if a model has a certain column/attribute?

I have a method that needs to loop through a hash and check if each key exists in a models table, otherwise it will delete the key/value. ...
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How do I make jQuery wait for an Ajax call to finish before it returns?

I have a server side function that requires login. If the user is logged in the function will return 1 on success. If not, the function will return the login-page. ...
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Use tab to indent in textarea

I have a simple html textarea on my side. Right now if you click tab in it, it goes to the next field. I would like to make the tab button indent a few spaces instead. How can I do this? Thanks. ...
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Export from sqlite to csv using shell script

I'm making a shell script to export a sqlite query to a csv file, just like this: 5 Answers ...
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Partly JSON unmarshal into a map in Go

My websocket server will receive and unmarshal JSON data. This data will always be wrapped in an object with key/value pairs. The key-string will act as value identifier, telling the Go server what kind of value it is. By knowing what type of value, I can then proceed to JSON unmarshal the value int...
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Scala list concatenation, ::: vs ++

Is there any difference between ::: and ++ for concatenating lists in Scala? 4 Answers ...