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How to join multiple lines of file names into one with custom delimiter?
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edited Oct 23 '14 at 12:23
jpbochi
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ans...
Error to install Nokogiri on OSX 10.9 Maverick?
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245
You can also install Nokogiri on Mac OS X 10.9 Mavericks with full XCode Install using:
gem in...
What's the difference between echo, print, and print_r in PHP?
...r you can't tell the difference between 0 and 0.0, or false and '':
array(4) {
[0]=>
int(0)
[1]=>
float(0)
[2]=>
bool(false)
[3]=>
string(0) ""
}
Array
(
[0] => 0
[1] => 0
[2] =>
[3] =>
)
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Regex lookahead, lookbehind and atomic groups
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904
Examples
Given the string foobarbarfoo:
bar(?=bar) finds the 1st bar ("bar" which has "bar...
“Could not run curl-config: [Errno 2] No such file or directory” when installing pycurl
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488
On Debian I needed the following packages to fix this
sudo apt install libcurl4-openssl-dev l...
Calculating arithmetic mean (one type of average) in Python
...eturn float(sum(numbers)) / max(len(numbers), 1)
>>> mean([1,2,3,4])
2.5
>>> mean([])
0.0
In numpy, there's numpy.mean().
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What does T&& (double ampersand) mean in C++11?
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4 Answers
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How can I wait for set of asynchronous callback functions?
...times out after a long time.
jQuery Promises
Adding to my answer in 2014. These days, promises are often used to solve this type of problem since jQuery's $.ajax() already returns a promise and $.when() will let you know when a group of promises are all resolved and will collect the return resu...
Efficient evaluation of a function at every cell of a NumPy array
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164
You could just vectorize the function and then apply it directly to a Numpy array each time you ...
Changing one character in a string
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answered Aug 4 '09 at 16:41
scvalexscvalex
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