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Scala: Abstract types vs generics

I was reading A Tour of Scala: Abstract Types . When is it better to use abstract types? 4 Answers ...
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What's the meaning of Base SDK, iOS deployment target, Target, and Project in xcode

Say I set base SDK to 7, what does it mean? It could mean that the app would run on iOS 7. But that's what iOS deployment target is for. ...
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Printing hexadecimal characters in C

I'm trying to read in a line of characters, then print out the hexadecimal equivalent of the characters. 7 Answers ...
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Declaration/definition of variables locations in ObjectiveC?

Ever since starting to work on iOS apps and objective C I've been really puzzled by the different locations where one could be declaring and defining variables. On one hand we have the traditional C approach, on the other we have the new ObjectiveC directives that add OO on top of that. Could you fo...
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How do I add a delay in a JavaScript loop?

I would like to add a delay/sleep inside a while loop: 30 Answers 30 ...
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How to play audio?

I am making a game with HTML5 and JavaScript. 19 Answers 19 ...
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CSS – why doesn’t percentage height work? [duplicate]

How come a percentage value for height doesn’t work but a percentage value for width does? 6 Answers ...
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How to remove debugging from an Express app?

I would like to remove the debugging mode. I am using express , redis , socket.io and connect-redis , but I do not know where the debugging mode comes from. ...
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How do I increase the RAM and set up host-only networking in Vagrant?

I would like to increase the RAM to at least 1 GB and I would like to configure “Host-Only” networking to use "199.188.44.20". ...
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How to detect that animation has ended on UITableView beginUpdates/endUpdates?

I am inserting/deleting table cell using insertRowsAtIndexPaths/deleteRowsAtIndexPaths wrapped in beginUpdates/endUpdates . I am also using beginUpdates/endUpdates when adjusting rowHeight. All these operations are animated by default. ...