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Easiest way to detect Internet connection on iOS?

I know this question will appear to be a dupe of many others, however, I don't feel the simple case is well explained here. Coming from an Android and BlackBerry background, making requests through HTTPUrlConnection instantly fail if there is no connection available. This seems like completely san...
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mongoose vs mongodb (nodejs modules/extensions), which better? and why?

I've just arrived to Node.js and see that there are many libs to use with the MongoDB, the most popular seem to be these two: (mongoose and mongodb). Can I get pros and cons of those extensions? Are there better alternatives to these two? ...
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When is an interface with a default method initialized?

... This is a very interesting issue! It seems like JLS section 12.4.1 ought to cover this definitively. However, the behavior of Oracle JDK and OpenJDK (javac and HotSpot) differs from what's specified here. In particular, the Example 12.4.1-3 from this section covers...
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Client-server synchronization pattern / algorithm?

I have a feeling that there must be client-server synchronization patterns out there. But i totally failed to google up one. ...
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How do I choose grid and block dimensions for CUDA kernels?

This is a question about how to determine the CUDA grid, block and thread sizes. This is an additional question to the one posted here . ...
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Apache Spark: map vs mapPartitions?

What's the difference between an RDD's map and mapPartitions method? And does flatMap behave like map or like mapPartitions ? Thanks. ...
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Understanding the Event Loop

I am thinking about it and this is what I came up with: 3 Answers 3 ...
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Using printf with a non-null terminated string

Suppose you have a string which is NOT null terminated and you know its exact size, so how can you print that string with printf in C? I recall such a method but I can not find out now... ...
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Does the ternary operator exist in R?

As the question asks, is there a control sequence in R similar to C's ternary operator ? If so, how do you use it? Thanks! ...
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How to access property of anonymous type in C#?

... If you want a strongly typed list of anonymous types, you'll need to make the list an anonymous type too. The easiest way to do this is to project a sequence such as an array into a list, e.g. var nodes = (new[] { new { Checked = false, /* etc */ } }).ToList(); Th...