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How to properly check if std::function is empty in C++11?
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You're not checking for an empty lambda, but whether the std::function has a callable target st...
jQuery append() - return appended elements
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Jeroen
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answered Jan 29 '10 at 1:49
SLaksSLaks
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Disable messages upon loading a package
...ssMessages() around your library() call:
edd@max:~$ R
R version 2.14.1 (2011-12-22)
Copyright (C) 2011 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: x86_64-pc-linux-gnu (64-bit)
[...]
R> suppressMessages(library(ROCR))
R> ...
How to add additional fields to form before submit?
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edited Jun 6 '19 at 20:57
molasses
5566 bronze badges
answered Jul 23 '13 at 11:36
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How to concatenate strings with padding in sqlite
... seemingly-cheater way I've used is to start with your target string, say '0000', concatenate '0000423', then substr(result, -4, 4) for '0423'.
Update: Looks like there is no native implementation of "lpad" or "rpad" in SQLite, but you can follow along (basically what I proposed) here: http://verys...
Progress indicator during pandas operations
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302
Due to popular demand, tqdm has added support for pandas. Unlike the other answers, this will n...
How is this fibonacci-function memoized?
... and kept ready in case it is asked for again. If we define some list, xs=[0..] and later ask for its 100th element, xs!!99, the 100th slot in the list gets "fleshed out", holding the number 99 now, ready for next access.
That is what that trick, "going-through-a-list", is exploiting. In normal do...
How to Pass Parameters to Activator.CreateInstance()
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answered Mar 16 '10 at 0:08
SLaksSLaks
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How can you encode a string to Base64 in JavaScript?
... character represents an 8-bit byte – that is, its value will be between 0 and 0xff. This does not mean it’s ASCII – presumably if you’re using this function at all, you expect to be working with binary data and not text.
See also:
How do I load binary image data using Javascript and XML...
Javascript split regex question
...any character (dots are wildcard characters in regular expressions). With "02-25-2010", it would split each time "-2" is encountered, because the dash matches and the dot matches "2".
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