Issue #15799 has been updated by mame (Yusuke Endoh).


I investigated history of pipeline operator.  It is very long, so I wrote [an article in my blog](https://mamememo.blogspot.com/2019/06/a-brief-history-of-pipeline-operator.html).  In short: In my current opinion, the current spec is somewhat reasonable, never so strange.  I'm yet unsure if or not the feature is good to have in Ruby, though.

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Feature #15799: pipeline operator
https://bugs.ruby-lang.org/issues/15799#change-78608

* Author: nobu (Nobuyoshi Nakada)
* Status: Closed
* Priority: Normal
* Assignee: 
* Target version: 
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Implemented the pipeline operator `|>`, a topic of "ruby committers vs the world" in RubyKaigi 2019.
Also a casual idea of rightward assignment.

```ruby
1.. |> take 10 |> map {|e| e*2} |> (x)
p x #=> [2, 4, 6, 8, 10, 12, 14, 16, 18, 20]
```

https://github.com/nobu/ruby/tree/feature/pipeline




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