Issue #9515 has been reported by Tsuyoshi Sawada.

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Feature #9515: IO.each (and perhaps CSV.each)
https://bugs.ruby-lang.org/issues/9515

* Author: Tsuyoshi Sawada
* Status: Open
* Priority: Normal
* Assignee: 
* Category: 
* Target version: 
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There are pairs `IO.read` and `IO#read`, and `IO.write` and `IO#write`, but when it comes to `IO#each` and `IO#each_line`, their counterpart in the class method is `IO.foreach`. This is hard to remember. I request `IO.each` to be an alias for `IO.foreach`. Perhaps the same thing for CSV.each



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