From: daz <dooby@...10.karoo.co.uk>
Date: 2005-11-08T17:07:12+09:00
Subject: Re: an array of hashes


Francesco wrote:
> Francesco wrote:
> > @person.telephones.collect {|x| [] << x.number}.join(', ')
> @person.telephones.collect {|x| x.number}.join(', ')
>
>
> Thank you all! You all gave the same answer,
> so that must be the correct way :)

If you show some sample data, you may see alternatives.

Your example with 'x.number' led to the conclusion that
'number' is an accessor into structure other than a Hash.

# If 'telephones' really is a Hash {id => num}, e.g.

    phones = {:home   => '00-0001',
              :office => '00-0002',
              :mobile => '00-0003'}

# then each of these:

    puts phones.collect {|x| x[1]}.join(', ')
    puts phones.collect {|k,v| v}.join(', ')
    puts phones.values.join(', ')       # <-- better

# gives the same result:  #-> 00-0003, 00-0002, 00-0001

If you're happy with what you have already, please ignore.

daz