Re: how do I do this index in p6?

[Brad Gilbert]

On Thu, Sep 13, 2018 at 11:52 PM Todd Chester <toddandma...@zoho.com> wrote:
>
> >> Le jeu. 13 sept. 2018 à 23:12, ToddAndMargo <toddandma...@zoho.com
> >> <mailto:toddandma...@zoho.com>> a écrit :
> >>
> >
> >>     $ p6 'constant c=299792458; say c ~" metres per second";'
> >>     299792458 metres per second
> >>
> >>     Hmmmmm. Now I am wondering how to format the
> >>     commas into the say.
> >>
>
>
>
> On 09/13/2018 02:43 PM, Laurent Rosenfeld wrote:
> > Not very pretty, but this works:
> >
> > constant c = 299792458;
> > say c.flip.subst(/(\d**3)/, {"$0,"}, :g).flip.subst(/^\,/, "");
> >
>
> Oh Dude!

It's simpler to use comb and join

    constant c = 299792458;
    say c.flip.comb(3).join(',').flip;