Set.new vs Set[]

ruby-talk
1

Whoops, you're right. I should have noticed that. Anyway, I think I'll
submit a documentation patch, since the difference between Set and
Set.new isn't very well spelled out (to me, anyway).

Thanks.

Dan

···

-----Original Message-----
From: Damphyr [mailto:damphyr@freemail.gr]
Sent: Saturday, October 15, 2005 2:48 PM
To: ruby-talk ML
Subject: Re: Set.new vs Set

Daniel Berger wrote:
> Hi all,
>
> Ruby 1.8.3
>
> irb(main):001:0> require "set"
> => true
>
> irb(main):002:0> a = [0,1,2,3,4,5,2,3]
> => [0, 1, 2, 3, 4, 5, 2, 3]
>
> irb(main):003:0> set1 = Set.new(a)
> => #<Set: {5, 0, 1, 2, 3, 4}>
>
> irb(main):004:0> set2 = Set[a]
> => #<Set: {[0, 1, 2, 3, 4, 5, 2, 3]}>
>
> Shouldn't the set returned by Set also be only the unique values?
Nope, you just made a Set with an array as an element in the
second example. In the first one you have the elements of the
array inserted in the set,
not the array itself.
Cheers,
V.-