From: 7stud -- <bbxx789_05ss@...>
Date: 2009-03-20T17:50:12+09:00
Subject: Re: Passing a named function instead of a code block?

Matthias Reitinger wrote:
>
>   puts c.collect(&method(:fib))
> 

Why is there a difference here:

def square1(x)
  x*x
end

square2 = lambda { |x| x*x}

puts [1, 2, 3].collect(&square2)
puts [1, 2, 3].collect(&square1)

--output:--
1
4
9
r1test.rb:8:in `square1': wrong number of arguments (0 for 1) 
(ArgumentError)
        from r1test.rb:8


Why does ruby make you use the tortured syntax:

&method(:square1)

for a method vs. the easier syntax for a Proc object?


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