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How to access the last value in a vector?
...s not from an aesthetical but performance-oriented point of view, I've put all of the above suggestions through a benchmark. To be precise, I've considered the suggestions
x[length(x)]
mylast(x), where mylast is a C++ function implemented through Rcpp,
tail(x, n=1)
dplyr::last(x)
x[end(x)[1]]]
rev...
Setting the Vim background colors
... Thanks, it works. I tried that option before, but it seems that not all colors work, for instance brown and yellow options don't affect my default console background at all.
– Maksim Vi.
Jul 13 '09 at 2:52
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How can I read a function's signature including default argument values?
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@Spi, you are calling inspect.getargspec on a module, not a function.
– Mike Graham
Apr 20 '10 at 17:36
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What is bootstrapping?
... I've yet to come across even a poor explanation of what bootstrapping actually is; rather, it seems as though everyone is just supposed to know what it means. I don't, though. Near as I can figure, it has something to do with initialization tasks required of an application upon launch, but I coul...
How is Python's List Implemented?
...dynamic array. Practical proof: Indexing takes (of course with extremely small differences (0.0013 µsecs!)) the same time regardless of index:
...>python -m timeit --setup="x = [None]*1000" "x[500]"
10000000 loops, best of 3: 0.0579 usec per loop
...>python -m timeit --setup="x = [None]*100...
Calculating days between two dates with Java
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Well, basically this is the same as current best answer, though this answer provides it as a function.
– Andrew T.
May 12 '15 at 7:52
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Difference between 'self' and 'total' in Chrome CPU Profile of JS
...otal is how much time was spent in that function, and in the functions it called.
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Sending command line arguments to npm script
... a parsing library like yargs or minimist; nodejs exposes process.argv globally, containing command line parameter values, but this is a low-level API (whitespace-separated array of strings, as provided by the operating system to the node executable).
Edit 2013.10.03: It's not currently possible...
What is BSON and exactly how is it different from JSON?
... the things that I have noticed is that it uses BSON to store data internally. However the documentation is not exactly clear on what BSON is and how it is used in MongoDB. Can someone explain it to me, please?
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How To fix white screen on app Start up?
...... apparently someone at Google decided that a white preview window was really awesome to use by default. However, in an app that uses a dark background it's a really bad idea. The solution is to create a custom style for your app and specify 'android:windowBackground' to the color you want to use....