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How the single threaded non blocking IO model works in Node.js

... article understanding-the-node-js-event-loop , I'm really confused about it. It gave an example for the model: 7 Answers ...
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Creating a left-arrow button (like UINavigationBar's “back” style) on a UIToolbar

I'd love to create a "back" left-arrow-bezel button in a UIToolbar . 24 Answers 24 ...
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Best way to test exceptions with Assert to ensure they will be thrown

...s when this is not sufficient. The exception may not be catchable - since it's thrown by a method that is invoked by reflection - or perhaps I just want to check that other conditions hold, say a transaction is rolled back or some value has still been set. In these cases I wrap it in a try/catch b...
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Node.js create folder or use existing

... have read the documentation of Node.js and, unless if I missed something, it does not tell what the parameters contain in certain operations, in particular fs.mkdir() . As you can see in the documentation, it's not very much. ...
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Why is this program erroneously rejected by three C++ compilers?

I am having some difficulty compiling a C++ program that I've written. 31 Answers 31 ...
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UICollectionView's cellForItemAtIndexPath is not being called

Only my second time using UICollectionView's and perhaps I have bitten off more than I can chew but nevertheless: 31 Answer...
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How to pass objects to functions in C++?

...hich case you pass by non-const reference the function should be callable without any argument, in which case you pass by pointer, so that users can pass NULL/0/nullptr instead; apply the previous rule to determine whether you should pass by a pointer to a const argument they are of built-in types, ...
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What are dictionary view objects?

...their name says: views are simply like a window on the keys and values (or items) of a dictionary. Here is an excerpt from the official documentation for Python 3: >>> dishes = {'eggs': 2, 'sausage': 1, 'bacon': 1, 'spam': 500} >>> keys = dishes.keys() >>> values = dish...
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Any way to declare a size/partial border to a box?

...y way to declare a size/partial border to a box in CSS? For example a box with 350px that only shows a border-bottom in its firsts 60px . I think that might be very useful. ...
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Is That REST API Really RPC? Roy Fielding Seems to Think So

...pparently wrong - and I'm not alone. This question has a long lead-in, but it seems to be necessary because the information is a bit scattered. The actual question comes at the end if you're already familiar with this topic. ...