From: Greg McIntyre <greg@...>
Date: 2003-11-19T11:42:18+09:00
Subject: Re: Again, Rite explanation needed  (keyword args and new hash syntax)


I'm a bit confused by this too.

---
def f(a, b: 2, **kwd)
 p [a,b,kwd]
end

f(1) #=> [1,2,{}]
f(1,b:5) #=>[1,5,{}]
f(1,b:5,c:6) #=>[1,5,{:c=>6}]

---

Is the double asterisk (**) especially for grouping the rest of the
arguments into a hash the same way that a single asterisk groups the
rest of the arguments into an array? If so,

  f(1,b:5,6,7,8) # => ? runtime error?

Can I still use position to in the argument list and forgo the
keywordiness?

  f(1,5) # => [1,5,{}]

Can I change the order of the arguments or leave as many as I like out?
Shouldn't that be included in the primary example of this? It is the
point, isn't it?

  def g(a:1,b:2,c:3)
    [a,b,c]
  end

  g(c:5,b:6) # => [1, 6, 5]

Is that right?

-- 
Greg McIntyre ======[ greg@puyo.cjb.net ]===[ http://puyo.cjb.net ]===