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Unique combination of all elements from two (or more) vectors
...aybe what you are after
> expand.grid(a,b)
Var1 Var2
1 ABC 2012-05-01
2 DEF 2012-05-01
3 GHI 2012-05-01
4 ABC 2012-05-02
5 DEF 2012-05-02
6 GHI 2012-05-02
7 ABC 2012-05-03
8 DEF 2012-05-03
9 GHI 2012-05-03
10 ABC 2012-05-04
11 DEF 2012-05-04
12 GHI 2012-05-04
13 AB...
Which concurrent Queue implementation should I use in Java?
... ArrayBlockingQueue is a queue of a fixed size. So if you set the size at 10, and attempt to insert an 11th element, the insert statement will block until another thread removes an element. The fairness issue is what happens if multiple threads try to insert and remove at the same time (in other wor...
CSS Pseudo-classes with inline styles
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edited Jun 20 at 9:12
Community♦
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answered Mar 13 '11 at 23:37
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What is the difference between JDK dynamic proxy and CGLib?
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answered May 19 '12 at 10:07
raphaëλraphaëλ
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What is “lifting” in Scala?
...ion.
scala> val pf: PartialFunction[Int, Boolean] = { case i if i > 0 => i % 2 == 0}
pf: PartialFunction[Int,Boolean] = <function1>
scala> pf.lift
res1: Int => Option[Boolean] = <function1>
scala> res1(-1)
res2: Option[Boolean] = None
scala> res1(1)
res3: Option[...
What does “Protocol … can only be used as a generic constraint because it has Self or associated typ
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newacctnewacct
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gunicorn autoreload on source change
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While this is old question you need to know that ever since version 19.0 gunicorn has had the --reload option.
So now no third party tools are needed.
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Check if key exists and iterate the JSON array using Python
..., "name": "Mary Pinter"}, "message": "How ARE you?", "comments": {"count": 0}, "updated_time": "2012-05-01", "created_time": "2012-05-01", "to": {"data": [{"id": "1543", "name": "Honey Pinter"}]}, "type": "status", "id": "id_7"}"""
def getTargetIds(jsonData):
data = json.loads(jsonData)
if ...
JavaScript and Threads
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110
See http://caniuse.com/#search=worker for the most up-to-date support info.
The following was t...
Extract a substring from a string in Ruby using a regular expression
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answered Nov 6 '10 at 20:58
sepp2ksepp2k
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