From: Joel VanderWerf <vjoel@...>
Date: 2004-01-24T02:47:51+09:00
Subject: Re: Why is to_a going to be obsolete?

Gennady wrote:
> I was also surprised to learn that Object#to_a is going to be obsolete. 
> However, I immediately found a replacement for it that I like even more:
> 
> instead of doing
> o.to_a
> 
> I do now
> [ *o ]
> 
> And this is not reported as obsolete in Ruby 1.8.1 yet ;-)

Don't get too fond of it ;)

irb(main):016:0> [~] irb
irb(main):001:0> h = {1=>2, :three=>"four"}
=> {1=>2, :three=>"four"}
irb(main):002:0> [*h]
=> [[1, 2], [:three, "four"]]
irb(main):003:0> class << h
irb(main):004:1> undef :to_a
irb(main):005:1> end
=> nil
irb(main):006:0> h.to_a
NoMethodError: undefined method `to_a' for {1=>2, :three=>"four"}:Hash
         from (irb):6
irb(main):007:0> [*h]
NoMethodError: undefined method `to_a' for {1=>2, :three=>"four"}:Hash
         from (irb):7