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Scala list concatenation, ::: vs ++
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Legacy. List was originally defined to be functional-languages-looking:
1 :: 2 :: Nil // a lis...
Get the week start date and week end date from week number
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You can find the day of week and do a date add on days to get the start and end dates..
DATEADD...
Regular expression to match URLs in Java
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edited Sep 29 '13 at 20:09
Alan Moore
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TypeScript sorting an array
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answered Feb 10 '14 at 21:08
SLaksSLaks
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How to convert a unix timestamp (seconds since epoch) to Ruby DateTime?
...must be converted to a string:
require 'date'
DateTime.strptime("1318996912",'%s')
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How can I use numpy.correlate to do autocorrelation?
... result = numpy.correlate(x, x, mode='full')
return result[result.size/2:]
You will, of course, need error checking to make sure that x is actually a 1-d array. Also, this explanation probably isn't the most mathematically rigorous. I've been throwing around infinities because the definition o...
Python, compute list difference
... matter, you can simply calculate the set difference:
>>> set([1,2,3,4]) - set([2,5])
set([1, 4, 3])
>>> set([2,5]) - set([1,2,3,4])
set([5])
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How can I convert a hex string to a byte array? [duplicate]
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502
Here's a nice fun LINQ example.
public static byte[] StringToByteArray(string hex) {
return...
What are “named tuples” in Python?
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Named tuples are basically easy-to-create, lightweight object types. Named tuple instances ca...
Are Javascript arrays sparse?
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edited May 23 '17 at 11:54
Community♦
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answered Oct 2 '09 at 17:21
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