From: Dark Ambient <sambient@...>
Date: 2006-08-13T09:25:59+09:00
Subject: Re: map or collect with multidimension arrays

Just wanted to thank everyone for the help.
No doubt I'll be back for some other issues :)

Stuart

On 8/12/06, Morton Goldberg <m_goldberg@ameritech.net> wrote:
> You're right.  Shouldn't use << in this case. If OP wanted x
> modified, then could have just written:
>
> x = [["john", "doe"], ["mary", "jane"], ["jim","richards"],
> ["sue","scott"]]
> x.each {|i| i << "name"}
>
> Regards, Morton
>
> On Aug 12, 2006, at 2:11 PM, dblack@wobblini.net wrote:
>
> > Hi --
> >
> > On Sun, 13 Aug 2006, Morton Goldberg wrote:
> >>
> >> On Aug 12, 2006, at 11:08 AM, Dark Ambient wrote:
> >>
> >>> I know they are interchangeable
> >>> But I can't make it work.
> >>> For instance -
> >>> x = [["john", "doe"],["mary", "jane"],["jim","richards"],
> >>> ['sue","scott"]]
> >>> y = x.map {|i| i + "name" }
> >>> p y
> >>> It's returning nil on me ????
> >>
> >> Try
> >>
> >> x = [["john", "doe"],["mary", "jane"],["jim","richards"],
> >> ["sue","scott"]] # <= "sue" not 'sue"
> >> y = x.map {|i| i << "name" }
> >> p y
> >
> > The disadvantage of that is that it changes the original objects
> > inside x.
> >
> >
> > David
> >
> > --
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> >
>
>
>