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What is the documents directory (NSDocumentDirectory)?

...ath = paths.firstObject; return basePath; } This Documents directory allows you to store files and subdirectories your app creates or may need. To access files in the Library directory of your apps sandbox use (in place of paths above): [NSSearchPathForDirectoriesInDomains(NSLibraryDirectory...
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What is a None value?

...n't write the sticker "F", there was already an F sticker on the None, and all you did was move it, from None to "fork". So when you type F = None, you're "reset[ting] it to its original, empty state", if we decided to treat None as meaning empty state. I can see what he's getting at, but that's a...
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How to len(generator()) [duplicate]

... Generators have no length, they aren't collections after all. Generators are functions with a internal state (and fancy syntax). You can repeatedly call them to get a sequence of values, so you can use them in loop. But they don't contain any elements, so asking for the length of ...
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Pass variables to Ruby script via command line

I've installed RubyInstaller on Windows and I'm running IMAP Sync but I need to use it to sync hundreds of accounts. If I could pass these variables to it via command line I could automate the whole process better. ...
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ValidateAntiForgeryToken purpose, explanation and example

...icking the logged in user into submitting a form, or by simply programmatically triggering a form when the page loads. The feature doesn't prevent any other type of data forgery or tampering based attacks. To use it, decorate the action method or controller with the ValidateAntiForgeryToken attrib...
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Socket.IO - how do I get a list of connected sockets/clients?

I'm trying to get a list of all the sockets/clients that are currently connected. 26 Answers ...
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TypeError: got multiple values for argument

...r and it seems that my problem has an interesting distinct difference than all the posts I read so far, namely, all the other posts so far have the error in regards to either a user created class or a builtin system resource. I am experiencing this problem when calling a function, I can't figure out...
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TypeError: method() takes 1 positional argument but 2 were given

...- it's just that the first one is implicit, from the point of view of the caller. This is because most methods do some work with the object they're called on, so there needs to be some way for that object to be referred to inside the method. By convention, this first argument is called self inside ...
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How do I get the real .height() of a overflow: hidden or overflow: scroll div?

...qual to the minimum clientHeight the element would require in order to fit all the content in the viewpoint without using a vertical scrollbar. It includes the element padding but not its margin. share | ...
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The tilde operator in Python

...a unary operator (taking a single argument) that is borrowed from C, where all data types are just different ways of interpreting bytes. It is the "invert" or "complement" operation, in which all the bits of the input data are reversed. In Python, for integers, the bits of the twos-complement repr...