From: Arup Rakshit <lists@...>
Date: 2013-02-02T21:27:00+09:00
Subject: Confusion with Enum#with_index

I was playing to understand the method "Enum#with_index" with the below
code:

===================================================
irb(main):024:0> xs = ['a', 'b', 'c']
=> ["a", "b", "c"]
irb(main):025:0> xs.to_enum.with_index(2)
=> #<Enumerator: #<Enumerator: ["a", "b", "c"]:each>:with_index(2)>

====================================================

irb(main):014:0> to_three = Enumerator.new do |y|
irb(main):015:1*  3.times do |x|
irb(main):016:2* y<<x
irb(main):017:2> end
irb(main):018:1> end
=> #<Enumerator: #<Enumerator::Generator:0x2193ca8>:each>
irb(main):027:0> to_three.with_index(2)
=> #<Enumerator: #<Enumerator:
#<Enumerator::Generator:0x2193ca8>:each>:with_ind
ex(2)>

====================================================

Couldn't understand the output of "to_three.with_index(2)" .

Could anyone help me?

-- 
Posted via http://www.ruby-forum.com/.