From: Robert Klemme <shortcutter@...>
Date: 2008-04-01T22:23:22+09:00
Subject: Re: boolean and logging

2008/4/1, aidy <aidy.lewis@googlemail.com>:
> On 31 Mar, 16:56, Robert Klemme <shortcut...@googlemail.com> wrote:
>
>  > The method invokes the block and uses the result to determine what to
>  > do (if or else).
>  >
>  > Does that help?
>
>  Surely does. Thanks Robert, your a linguist.

Hm, not sure whether that was irony or not. :-)

Maybe this helps:

irb(main):001:0> def test(yes,no)
irb(main):002:1> if yield
irb(main):003:2> puts yes
irb(main):004:2> else
irb(main):005:2* puts no
irb(main):006:2> end
irb(main):007:1> end
=> nil
irb(main):008:0> test("ok", "not ok") { 1 > 2 }
not ok
=> nil
irb(main):009:0> test("ok", "not ok") { 1 < 2 }
ok
=> nil
irb(main):010:0> test("ok", "not ok")
LocalJumpError: no block given
        from (irb):2:in `test'
        from (irb):10
        from :0
irb(main):011:0>

Kind regards

robert

-- 
use.inject do |as, often| as.you_can - without end