foreach(p1, p2 = v2, p3 = v3, p4 = v4) public

Executes the block for every line in the named I/O port, where lines are separated by sep.

IO.foreach("testfile") {|x| print "GOT ", x }


GOT This is line one
GOT This is line two
GOT This is line three
GOT And so on...

If the last argument is a hash, it’s the keyword argument to open. See IO.read for detail.

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