Return Enumerator without using existing iterators

Question

How do I return Enumerator from my array wrapper without using already existing array iterators?

class MyArray

  def initialize
   @inner = []
  end

  def each
    index = 0
    while index < @inner.size
      yield @inner[index] if block_given?
      index += 1
    end
  end
end

I can't figure out how to avoid calling things like @inner.each at the end of the each method.

@sawa I fixed it. There was a naming mismatch.

Ondrej Janacek
– Ondrej Janacek

2013-10-10 13:29:13 +00:00
Commented Oct 10, 2013 at 13:29 — Ondrej Janacek
– Ondrej Janacek, Commented Oct 10, 2013 at 13:29
@sawa Ok, there was an extra def before class.

Ondrej Janacek
– Ondrej Janacek

2013-10-10 13:31:38 +00:00
Commented Oct 10, 2013 at 13:31 — Ondrej Janacek
– Ondrej Janacek, Commented Oct 10, 2013 at 13:31

sawa · Accepted Answer · 2013-10-10 13:27:34Z

1

Given:

@inner = [1, 2, 3]

Code

@inner.to_enum

will return an enumerator.

enum = @inner.to_enum
enum.each{|e| p e}
# => 1, 2, 3

answered Oct 10, 2013 at 13:27

sawa

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1 Comment

Ondrej Janacek Over a year ago

Thank you for the solution, code correction and english correction :)

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