From: Minkoo Seo <minkoo.seo@...>
Date: 2006-03-01T16:18:36+09:00
Subject: returning more than one value

Hi group.

I've tested the following:

irb(main):001:0> def foo
irb(main):002:1>   1,2
irb(main):003:1> end
SyntaxError: compile error
(irb):2: parse error, unexpected ',', expecting kEND
  1,2
    ^
        from (irb):3
        from :0
irb(main):004:0> def foo
irb(main):005:1>  return 1,2
irb(main):006:1> end
=> nil
irb(main):007:0> a,b = foo
=> [1, 2]
irb(main):008:0> a
=> 1
irb(main):009:0> b
=> 2
irb(main):010:0>

So, the bottom line is "1,2" simply fails, but "return 1,2" succeeds.
However, as you know,

def bar
  1
end

does return 1.

Why does 1,2 fail? Is there any reason?

Thank for your time.

Sincerely,
Minkoo Seo