From: Roger Braun <roger@...>
Date: 2011-04-01T07:35:14+09:00
Subject: Re: Simple array.each do |x| question

Hi

2011/4/1 Kyle X. <haebooty@yahoo.com>:
> Hello, I am new to ruby and cannot understand why this code is not
> working:
>
> direction = doc.elements.each("doc:iso_10303_28/uos/IfcCartesianPoint")
> { |element| puts element.attributes["id"] }
> # this produces [i1586,i1667,i1915,i2041,i2160]
> result = []
> direction.each do |z|
>  n = direction[z].attribute["id"]
>  result << n
> end

The variable z does not contain an index but the object you need. Try

direction.each do |z|
 n = z.attribute["id"]
 result << n
end

This should also work:

result = direction.map{|z| z.attribute["id"]}

-- 
Roger Braun
rbraun.net | humoralpathologie.de