Hash#flatten flattens recursively

Ruby Development
1

e$B1sF#$H?=$7$^$9!#e(B

Hash#flatten e$B$N%3%a%s%H$rFI$`$H!"$3$N%a%=%C%I$O%G%U%)%k%H$G$Oe(B
e$B:F5"E*$Ke(B flatten
e$B$7$J$$$H=q$$$F$"$k$N$G$9$,!"<B:]$K$O$9$k$h$&$G$9!#e(B

y$ ./ruby -ve ‘p({1 => “one”, 2 => [2,“two”], 3 => “three”}.flatten)’
ruby 1.9.0 (2008-02-05 revision 15377) [i686-linux]
[1, “one”, 2, 2, “two”, 3, “three”]

e$B%3%a%s%H$H<BAu$N$I$A$i$,@5$7$$$N$G$7$g$&$+!#e(B

e$B0J2<$Oe(B Hash#flatten e$B$N%3%a%s%H$N0zMQ$G$9!#e(B

2

e$B$^$D$b$He(B e$B$f$-$R$m$G$9e(B

In message “Re: [ruby-dev:33603] Hash#flatten flattens recursively”
on Tue, 5 Feb 2008 22:00:45 +0900, “Yusuke ENDOH” [email protected]
writes:

|Hash#flatten e$B$N%3%a%s%H$rFI$`$H!“$3$N%a%=%C%I$O%G%U%)%k%H$G$Oe(B
|e$B:F5"E*$Ke(B flatten e$B$7$J$$$H=q$$$F$”$k$N$G$9$,!"<B:]$K$O$9$k$h$&$G$9!#e(B
|
|y$ ./ruby -ve ‘p({1 => “one”, 2 => [2,“two”], 3 => “three”}.flatten)’
|ruby 1.9.0 (2008-02-05 revision 15377) [i686-linux]
|[1, “one”, 2, 2, “two”, 3, “three”]
|
|e$B%3%a%s%H$H<BAu$N$I$A$i$,@5$7$$$N$G$7$g$&$+!#e(B

e$B$J$s$G?)$$0c$C$F$k$N$+$<$s$<$s$o$+$i$J$$$s$G$9$,e(B(e$B%3%a%s%H$b<Be(B
e$BAu$bN>J};d$,%A%'%C%/%$%s$7$F$$$ke(B)e$B!";H$$>!<j$r9M$($k$H%3%a%s%He(B
e$BM%@h$NJ}$,NI$$$h$&$J5$$,$7$F$-$^$7$?!#e(B

e$BD>$7$^$9!#e(B