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Understanding dict.copy() - shallow or deep?
While reading up the documentation for dict.copy() , it says that it makes a shallow copy of the dictionary. Same goes for the book I am following (Beazley's Python Reference), which says:
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When are you truly forced to use UUID as part of the design?
I don't really see the point of UUID . I know the probability of a collision is effectively nil , but effectively nil is not even close to impossible.
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Why is there a `null` value in JavaScript?
In JavaScript, there are two values which basically say 'I don't exist' - undefined and null .
12 Answers
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What are the differences between struct and class in C++?
This question was already asked in the context of C#/.Net .
30 Answers
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Why doesn't Java Map extend Collection?
I was surprised by the fact that Map<?,?> is not a Collection<?> .
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What is a “slug” in Django?
When I read Django code I often see in models what is called a "slug". I am not quite sure what this is, but I do know it has something to do with URLs. How and when is this slug-thing supposed to be used?
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Should I use char** argv or char* argv[]?
I'm just learning C and was wondering which one of these I should use in my main method. Is there any difference? Which one is more common?
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Passing a 2D array to a C++ function
I have a function which I want to take, as a parameter, a 2D array of variable size.
15 Answers
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Is an anchor tag without the href attribute safe?
Is it okay to use an anchor tag without including the href attribute, and instead using a JavaScript click event handler? So I would omit the href completely, not even have it empty ( href="" ).
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Clone Object without reference javascript [duplicate]
I have a big object with much data. And i want to clone this in other variable. When i set some param of the instance B has the same result in the original object:
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