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Undefined reference to `sin` [duplicate]
I have the following code (stripped down to the bare basics for this question):
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Which is more efficient, a for-each loop, or an iterator?
Which is the most efficient way to traverse a collection?
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How to make an immutable object in Python?
Although I have never needed this, it just struck me that making an immutable object in Python could be slightly tricky. You can't just override __setattr__ , because then you can't even set attributes in the __init__ . Subclassing a tuple is a trick that works:
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How to move screen without moving cursor in Vim?
I recently discovered Ctrl + E and Ctrl + Y shortcuts for Vim that respectively move the screen up and down with a one line step, without moving the cursor .
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python re.sub group: number after \number
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Fast permutation -> number -> permutation mapping algorithms
I have n elements. For the sake of an example, let's say, 7 elements, 1234567. I know there are 7! = 5040 permutations possible of these 7 elements.
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How to make a class JSON serializable
How to make a Python class serializable?
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Nested JSON objects - do I have to use arrays for everything?
Is there any way to have nested objects in JSON so I don't have to make arrays out of everything? For my object to be parsed without error I seem to need a structure like this:
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Timeout jQuery effects
I am trying to have an element fade in, then in 5000 ms fade back out again. I know I can do something like:
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