The pipe operator appears in many languages (F#, Haskell, Elixir, Clojure
(threading macro)). It's an elegant way of chaining method/function calls in
the presence of additional parameters. The reddit example could be written
using a pipe operator |>
#('apple' 'peach' 'banana')
|> groupedBy: #size
|> select: [:each | each size even]
|> values
|> collect: #asCommaString.
/Garth
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