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When would anyone use a union? Is it a remnant from the C-only days?
I have learned but don't really get unions. Every C or C++ text I go through introduces them (sometimes in passing), but they tend to give very few practical examples of why or where to use them. When would unions be useful in a modern (or even legacy) case? My only two guesses would be programming ...
How and why does 'a'['toUpperCase']() in JavaScript work?
JavaScript keeps surprising me and this is another instance. I just came across some code which I did not understood at first. So I debugged it and came to this finding:
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Ruby: How to turn a hash into HTTP parameters?
That is pretty easy with a plain hash like
13 Answers
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What's a correct and good way to implement __hash__()?
What's a correct and good way to implement __hash__() ?
6 Answers
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Is there a reason that Swift array assignment is inconsistent (neither a reference nor a deep copy)?
I'm reading the documentation and I am constantly shaking my head at some of the design decisions of the language. But the thing that really got me puzzled is how arrays are handled.
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Java optional parameters
How do I use optional parameters in Java? What specification supports optional parameters?
17 Answers
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Are soft deletes a good idea? [duplicate]
Are soft deletes a good idea or a bad idea?
15 Answers
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Time complexity of Euclid's Algorithm
I am having difficulty deciding what the time complexity of Euclid's greatest common denominator algorithm is. This algorithm in pseudo-code is:
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What is std::move(), and when should it be used?
Good links are appreciated.
8 Answers
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Open a URL in a new tab (and not a new window)
I'm trying to open a URL in a new tab, as opposed to a popup window.
33 Answers
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