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method_chaining.rb
saasbook
Aug 15th, 2013
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Ruby
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# downcase and split are defined in String class
words =
IO
.
read
(
"file"
)
.
split
(
/
\W
+/
)
.
select
{
|
s
|
s =~
/
^
[
aeiou
]
/
i
}
.
map
{
|
s
|
s.
downcase
}
.
uniq
.
sort
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