From: Terry Michaels <spare@...>
Date: 2010-09-10T13:27:21+09:00
Subject: Re: Receiving array naturally?

Clifford Heath wrote:
> Terry Michaels wrote:
>> Clifford Heath wrote:
>>> You've overlooked the simplest way:
>> That doesn't work, because an array passed it gets treated like simply 
>> an element of the "strings" array:
> 
> Ah, right you are. I was thinking of this:
> 
> Array([2]) => [2]
> Array(2) => [2]
> but Array(*[1,2,3]) => ArgumentError: wrong number of arguments (3 for 
> 1)
> 
> ... and yes, I left out the *.
> What I was thinking of was Array[*strings]
> 
> However (I knew I'd done something like this before!):
> 
> def process_data(*strings)
>   strings = *strings
>   strings.each do |s|
>     print s.class.to_s + " " + s.to_s + " " + "\n"
>   end
> end
> 
> process_data("a", "b", "c")
> process_data(["a", "b", "c"])
> 
> Does what you want.
> 
> Clifford Heath.

This seems to work.

If I might ask, what exactly is the line

  strings = *strings

doing?

For that matter, I could use a little more clarification on what the '*' 
(glob?) operator does...
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