From: Shashank Date <ADATE@...>
Date: 2002-08-18T07:02:30+09:00
Subject: Re: Difference between proc.call and yield?

The parameter passing is also different, quoting Matz (from ruby-talk
46413):

> First, you have to learn several tips:
>
>   (a) block parameter |v| means takes everything in a single variable,
>       which is better described as |*v|.
>
>   (b) "call" requires exact number of required argument, whereas
>       "yield" fills nil for fewer arguments and ignores too much
>       arguments.

HTH,

-- Shanko

"Dan Debertin" <airboss@nodewarrior.org> wrote in message
news:87ptwitcpq.wl@discus.nodewarrior.org...
> Consider the following contrived examples:
>
>   def func1()
>     ret = []
>     t = nil
>     5.times do |i|
>       t = yield i
>       ret << t
>     end
>     ret
>   end
>
>   func1 { |b| b + 10 }  # [ 10, 11, 12, 13, 14 ]
>
>   def func2(&block)
>     ret = []
>     t = nil
>     5.times do |i|
>       t = block.call(i)
>       ret << t
>     end
>     ret
>   end
>
>   func2 { |b| b + 10 } # [ 10, 11, 12, 13, 14 ]
>
> Is this just TMTOWTDI, or is there a difference?
>
> Dan
> --
> /^Dan Debertin$/
> airboss@nodewarrior.org
> www.nodewarrior.org
> ignorami: n:
> The art of folding problem users into representational shapes.
>