From: Konrad Meyer <konrad@...>
Date: 2007-10-10T14:46:49+09:00
Subject: Re: will #in? be in ruby2? (was Re: Finding shared elements between to arrays.)

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Quoth Pe=F1a, Botp:
> Eric wrote:
> >    a3 =3D a1.select { |e| a2.include?(e) }
> >
>=20
> compare:
>    a3 =3D a1.select { |e| e.in? a2}
>=20
> the latter is more straightforward. the former expression rocks my brain=
=20
from left to right.
>=20
> Can we see light for #in? in ruby2? (just asking since december is near :=
)=20
and i do not see it in mauricio's eigenclass site either)
>=20
> kind regards -botp

Array#include?

  arr =3D [:sym, 'str'] # =3D> [:sym, 'str']
  arr.include? :sym # =3D> true

HTH,
=2D-=20
Konrad Meyer <konrad@tylerc.org> http://konrad.sobertillnoon.com/

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