From: Pit Capitain <pit.capitain@...>
Date: 2007-08-24T15:23:08+09:00
Subject: Re: Selecting indices from an array

2007/8/23, Ronald Fischer <ronald.fischer@venyon.com>:
> >
> > a.enum_for(:each_with_index).inject([]){|res, i|
> >   i[0].match( /g$/) ? res << i[1] : res
> > }
>
> This is an idea I like! Thanks a lot!

And you can make it even easier to read:

  a.enum_for(:each_with_index).inject([]){|res, (elem, idx)|
    elem.match( /g$/) ? res << idx : res
  }

Regards,
Pit