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Is bool a native C type?
I've noticed that the Linux kernel code uses bool, but I thought that bool was a C++ type. Is bool a standard C extension (e.g., ISO C90) or a GCC extension?
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How to deselect a selected UITableView cell?
I am working on a project on which I have to preselect a particular cell.
24 Answers
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Reverse colormap in matplotlib
I would like to know how to simply reverse the color order of a given colormap in order to use it with plot_surface.
7 Answ...
How do I create a variable number of variables?
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You can use dictionaries to accomplish this. Dictionaries are stores of keys and values.
>>> dct = {'x': 1, 'y': 2, 'z': 3}
>>> dct
{'y': 2, 'x': 1, 'z': 3}
>>> dct["y"]
2
You can use variable key names to achieve the effect of variable variables without the securit...
How to set background color of HTML element using css properties in JavaScript
How can I set the background color of an HTML element using css in JavaScript?
17 Answers
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What is the most efficient way of finding all the factors of a number in Python?
...0.5) + 1) if n % i == 0)))
This will return all of the factors, very quickly, of a number n.
Why square root as the upper limit?
sqrt(x) * sqrt(x) = x. So if the two factors are the same, they're both the square root. If you make one factor bigger, you have to make the other factor smaller. This...
How do I install g++ for Fedora?
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The package you're looking for is confusingly named gcc-c++.
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jQuery: Count number of list elements?
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Try:
$("#mylist li").length
Just curious: why do you need to know the size? Can't you just use:
$("#mylist").append("<li>New list item</li>");
?
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Finish an activity from another activity
I want to finish one activity from another activity, like:
10 Answers
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Freeing up a TCP/IP port?
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As the others have said, you'll have to kill all processes that are listening on that port. The easiest way to do that would be to use the fuser(1) command. For example, to see all of the processes listening for http requests on port 80 (run as root or use sudo):...