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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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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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Select N random elements from a List in C#
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127
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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Asynchronous shell commands
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117
You can just run the script in the background:
$ myscript &
Note that this is different...
jQuery find events handlers registered with an object
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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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