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Select N random elements from a List in C#
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Iterate through and for each element make the probability of selection = (number needed)/(numb...
Getting output of system() calls in Ruby
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15 Answers
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How to write asynchronous functions for Node.js
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edited Aug 1 '11 at 14:30
answered Aug 1 '11 at 13:20
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Android AsyncTask threads limits?
...ecommissioned according to a keep-alive timeout parameter.
Before Android 1.6, the core pool size was 1 and the maximum pool size was 10. Since Android 1.6, the core pool size is 5, and the maximum pool size is 128. The size of the queue is 10 in both cases. The keep-alive timeout was 10 seconds be...
How can I use map and receive an index as well in Scala?
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148
I believe you're looking for zipWithIndex?
scala> val ls = List("Mary", "had", "a", "littl...
Rounding BigDecimal to *always* have two decimal places
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1 Answer
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One-liner to check whether an iterator yields at least one element?
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135
any won't go beyond the first element if it's True. In case the iterator yields something fals...
How to get duplicate items from a list using LINQ? [duplicate]
...var duplicates = lst.GroupBy(s => s)
.SelectMany(grp => grp.Skip(1));
Note that this will return all duplicates, so if you only want to know which items are duplicated in the source list, you could apply Distinct to the resulting sequence or use the solution given by Mark Byers.
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