From: sto.mar@...
Date: 2013-02-03T00:26:10+09:00
Subject: Re: Confusion with Enum#with_index

Am 02.02.2013 13:27, schrieb Arup Rakshit:
> 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?

"Couldn't understand..." is not a particularly clear way to
ask a question.

What did you expect? What puzzled you?

The "output" is only the string representation of the enumerator
object that you created. But you haven't "done" anything with it.


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