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Which is better: … or …

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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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Multiple inheritance for an anonymous class

How can an anonymous class implement two (or more) interfaces? Alternatively, how can it both extend a class and implement an interface? For example, I want to create an object of anonymous class that extends two interfaces: ...
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Serializing an object to JSON

How can I serialize an object to JSON in JavaScript? 3 Answers 3 ...
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What's the difference between using CGFloat and float?

I tend to use CGFloat all over the place, but I wonder if I get a senseless "performance hit" with this. CGFloat seems to be something "heavier" than float, right? At which points should I use CGFloat, and what makes really the difference? ...
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Resolving conflicts: how to accept “their” changes automatically?

When merging conflicting changes using hg merge , Mercurial inserts a set of markers into the files to be merged in my working copy like this: ...
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What is the maximum float in Python?

I think the maximum integer in python is available by calling sys.maxint . 3 Answers ...
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When to choose mouseover() and hover() function?

What are the differences between jQuery .mouseover() and .hover() functions? If they are totally same why jQuery uses both? ...
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Force Screen On

How do I force the screen to stay active and not shut off while my app is running? 3 Answers ...
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How is Python's List Implemented?

Is it a linked list, an array? I searched around and only found people guessing. My C knowledge isn't good enough to look at the source code. ...