Ruby on Rails

On Dec 26, 9:22 am, ivanpoval <ivanpo...@gmail.com> wrote:
> With ActiveSupport from Rails it's also possible:
> @providers = @authentications.map(&:provider)

As of ruby 1.8.7 it's built into ruby (no active support required)

Fred
> --
> Thanks, Ivan Povalyukhin
>
> On Dec 25, 7:35 am, Michael Pavling <pavl...@gmail.com> wrote:
>
>
>
> > On 25 December 2010 15:23, Erwin <yves_duf...@mac.com> wrote:
>
> > > I am always writing it in 2 lines : ( Array init then loading the
> > > array )
>
> > >    @providers = []
> > >    @authentications.map {|authentification| @providers <<
> > > authentification.provider }
>
> > > Is there any Ruby writing for writing just one line ?
>
> >    @providers = @authentications.map { |authentication|
> > authentication.provider }

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