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All combinations of a list of lists
...gt; a = [[1,2,3],[4,5,6],[7,8,9,10]]
>>> [list(x) for x in numpy.array(numpy.meshgrid(*a)).T.reshape(-1,len(a))]
[[ 1, 4, 7], [1, 5, 7], [1, 6, 7], ....]
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Convert Iterator to ArrayList
Given Iterator<Element> , how can we convert that Iterator to ArrayList<Element> (or List<Element> ) in the best and fastest way possible, so that we can use ArrayList 's operations on it such as get(index) , add(element) , etc.
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Elegant method to generate array of random dates within two dates
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A matter of adding a loop and an array of already generated dates to check against when generating new one. Or am I missing something?
– bububaba
Jan 27 '12 at 15:48
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What is a rune?
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I'm still confused, so is string an array of runes or an array of bytes? Are they interchangeable?
– gogofan
Aug 11 '17 at 9:30
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A regular expression to exclude a word/string
...d words as you like, here is a simple PHP implementation:
$ignoredWords = array('ignoreme', 'ignoreme2', 'ignoreme...');
preg_match('~^/\b([a-z0-9]+)\b(?<!' . implode('|', array_map('preg_quote', $ignoredWords)) . ')~i', $string);
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isset() and empty() - what to use
...ing)
0 (0 as an integer)
0.0 (0 as a float)
"0" (0 as a string)
NULL
FALSE
array() (an empty array)
var $var; (a variable declared, but without a value in a class)
From http://php.net/manual/en/function.empty.php
As mentioned in the comments the lack of warning is also important with empty()
P...
How to split() a delimited string to a List
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string.Split() returns an array - you can convert it to a list using ToList():
listStrLineElements = line.Split(',').ToList();
Note that you need to import System.Linq to access the .ToList() function.
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JQuery: 'Uncaught TypeError: Illegal invocation' at ajax request - several elements
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I've read in JQuery docs that data can be an array (key value pairs).
I get the error if I put:
This is object not an array:
var data = {
'mode': 'filter_city',
'id_A': e[e.selectedIndex]
};
You probably want:
var data = [{
'mode': 'filte...
Downloading a file from spring controllers
...the one of Infeligo.
If the return value of your pdf framework is an byte array (read the second part of my answer for other return values) :
@RequestMapping(value = "/files/{fileName}", method = RequestMethod.GET)
public HttpEntity<byte[]> createPdf(
@PathVariable("fileName...
Common programming mistakes for Clojure developers to avoid [closed]
...a.lang.IllegalArgumentException: Wrong number of args passed to: PersistentArrayMap
because the #() reader macro gets expanded to
(fn [%1 %2] ({%1 %2}))
with the map literal wrapped in parenthesis. Since it's the first element, it's treated as a function (which a literal map actually is), but...