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Python: What OS am I running on?
What do I need to look at to see whether I'm on Windows or Unix, etc?
25 Answers
25
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How do I cancel a build that is in progress in Visual Studio?
...e a Pause/Break key, you can go to Tools -> Options -> Keyboard then set an extra mapping for the Build.Cancel command.
– Sean Colombo
Jul 31 '15 at 18:32
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Associative arrays in Shell scripts
...]}
echo ${newmap[name]}
Depending on the shell, you may need to do a typeset -A newmap instead of declare -A newmap, or in some it may not be necessary at all.
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fatal: The current branch master has no upstream branch
...d that he already tried this. 2nd one: -u option is the shortcut for the --set-upstream option which has nothing to do with the creation of a new branch. From the documentation of the -u or --set-upstream option: "For every branch that is up to date or successfully pushed, add upstream (tracking) re...
C dynamically growing array
I have a program that reads a "raw" list of in-game entities, and I intend to make an array holding an index number (int) of an indeterminate number of entities, for processing various things. I would like to avoid using too much memory or CPU for keeping such indexes...
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Safe (bounds-checked) array lookup in Swift, through optional bindings?
... was): for Collection types where the Indices are not contiguous. E.g. for Set instances, if we were to access a set element by index (SetIndex<Element>), we can run into runtime exceptions for indices that are >= startIndex and < endIndex, in which case the safe subscript fails (see e.g...
How can I change a file's encoding with vim?
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Notice that there is a difference between
set encoding
and
set fileencoding
In the first case, you'll change the output encoding that is shown in the terminal. In the second case, you'll change the output encoding of the file that is written.
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How can I initialize an ArrayList with all zeroes in Java?
...uite the same as what the OP wants. It would work if all you need to do is set, but you might be better of just using an array in that case.
– ColinD
Apr 8 '11 at 21:21
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Replace non-ASCII characters with a single space
I need to replace all non-ASCII (\x00-\x7F) characters with a space. I'm surprised that this is not dead-easy in Python, unless I'm missing something. The following function simply removes all non-ASCII characters:
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App Inventor 2 数学代码块 · App Inventor 2 中文网
... integer)
随机小数 (random fraction)
设定随机数种子 (random set seed to)
最小值 (min)
最大值 (max)
平方根 (square root)
绝对值 (abs)
相反数 (neg)
对数 (log)
e^
四舍五入 (round)
上取整 (ceiling)
下取整 (floor)
求模 (modulo)
余数 (r...