[ruby-list:50241] Re: Hash.new([])の挙動について

From: keiichi matsunaga <ma2@...>
Date: 2015-10-27 04:15:30 UTC
List: ruby-list #50241
On 2015/10/27 12:57, Kunimi Ikeda wrote:

> a =3D Hash.new([])

Hash=E3=81=AEnew=E3=81=AE=E5=BC=95=E6=95=B0=E3=81=AF=E3=80=8CHash=E3=81=AE=
=E3=82=AD=E3=83=BC=E3=81=AB=E5=AF=BE=E5=BF=9C=E3=81=99=E3=82=8B=E5=80=A4=E3=
=81=8C=E3=81=AA=E3=81=84=E3=81=A8=E3=81=8D=E3=81=AB=E3=83=87=E3=83=95=E3=82=
=A9=E3=83=AB=E3=83=88=E3=81=A7=E8=BF=94=E3=81=95=E3=82=8C=20
=E3=82=8B=E5=80=A4=E3=80=8D=E3=81=AA=E3=81=AE=E3=81=A7=E3=80=81

 > a['key'] << 1

=E3=81=A8=E3=82=84=E3=82=8B=E3=81=A8=E3=80=81a['key']=E3=81=AB=E5=AF=BE=E5=
=BF=9C=E3=81=99=E3=82=8B=E5=80=A4=E3=81=8C=E3=81=AA=E3=81=84=E3=81=9F=E3=82=
=81=E3=81=AB=E3=83=87=E3=83=95=E3=82=A9=E3=83=AB=E3=83=88=EF=BC=88=E7=A9=BA=
=E3=81=AE=E9=85=8D=E5=88=97=EF=BC=89=E3=82=92=E6=9B=B8=E3=81=8D=E6=8F=9B=20
=E3=81=88=E3=82=8B=E3=81=93=E3=81=A8=E3=81=AB=E3=81=AA=E3=82=8A=E3=81=BE=E3=
=81=99=E3=80=82

 > a['key'] << 2
 > a['key'] << 3

=E3=81=93=E3=82=8C=E3=81=A7=E6=AC=A1=E3=80=85=E3=81=A8=E3=81=9D=E3=81=AE=E3=
=83=87=E3=83=95=E3=82=A9=E3=83=AB=E3=83=88=E3=81=AE=E3=82=92=E6=9B=B8=E3=81=
=8D=E6=8F=9B=E3=81=88=E3=81=A6=E3=81=84=E3=81=BE=E3=81=99=E3=80=82
a=E3=81=9D=E3=81=AE=E3=82=82=E3=81=AE=E3=81=AB=E3=81=AF=E4=BD=95=E3=82=82=
=E8=A8=AD=E5=AE=9A=E3=81=95=E3=82=8C=E3=81=A6=E3=81=84=E3=81=AA=E3=81=84=E3=
=81=AE=E3=81=A7=E3=80=81{}=E3=81=AE=E3=81=BE=E3=81=BE=E3=81=A7=E3=81=99=E3=
=80=82

a.default=E3=81=A8=E3=81=99=E3=82=8B=E3=81=A8=E5=88=86=E3=81=8B=E3=82=8B=E3=
=81=A8=E6=80=9D=E3=81=84=E3=81=BE=E3=81=99=E3=80=82
=E3=83=AA=E3=83=95=E3=82=A1=E3=83=AC=E3=83=B3=E3=82=B9=E3=81=AE=E3=81=93=E3=
=81=AE=E3=81=B8=E3=82=93=E3=81=AB=E8=AA=AC=E6=98=8E=E3=81=8C=E3=81=82=E3=82=
=8A=E3=81=BE=E3=81=99=E3=80=82

http://docs.ruby-lang.org/ja/2.1.0/method/Hash/s/new.html


--=20
=E6=9D=BE=E6=B0=B8=E8=82=87=E4=B8=80=EF=BC=88keiichi matsunaga=EF=BC=89
=E6=A0=AA=E5=BC=8F=E4=BC=9A=E7=A4=BE=E3=83=A9=E3=82=A4=E3=83=95=E3=83=A1=E3=
=83=87=E3=82=A3=E3=82=A2=EF=BC=88http://lifemedia.jp=EF=BC=89 =E3=82=B7=E3=
=82=B9=E3=83=86=E3=83=A0=E9=96=8B=E7=99=BA=E9=83=A8

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