Array

$BG[Ns%/%i%9!%G[Ns$NMWAG$OG$0U$N(BRuby$B%*%V%8%'%/%H$G$9!%G[Ns$O0l(B $BHLE*$K$OG[Ns<0(B:

[1, 2, 3]

$B$G@8@.$5$l$^$9!%(B

$B%9!<%Q!<%/%i%9(B:

Object

$B%$%s%/%k!<%I$7$F$$$k%b%8%e!<%k(B:

Enumerable

$B%/%i%9%a%=%C%I(B:

Array[item...]

$B0z?t$rMWAG$H$7$F;}$DG[Ns$r@8@.$7$^$9!%(B

new([size[, val]])

$BG[Ns$r@8@.$7$^$9!%(Bsize$B$r;XDj$7$?$H$-$K$O$=$NBg$-(B $B$5$NG[Ns$r@8@.$7$^$9!%(Bval$B$r;XDj$7$?$H$-$K$OFbMF$r(B $B$=$NCM$G=i4|2=$7$^$9!%(Bval$B$N%G%U%)%k%H$O(Bnil $B$G$9!%(B

$B%a%=%C%I(B:

self[nth]

nth$BHVL\$NMWAG$rJV$7$^$9!%@hF,$NMWAG$,(B0$BHVL\$K$J$j(B $B$^$9!%(Bnth$B$NCM$,Ii$N;~$K$OKvHx$+$i$N%$%s%G%C%/%9$H(B $B8+Jo$7$^$9(B($BKvHx$NMWAG$,(B -1 $BHVL\(B)$B!%(Bnth$BHVL\$NMWAG$,(B $BB8:_$7$J$$;~$K$O(Bnil$B$rJV$7$^$9!%(B

self[start..end]

start$BHVL\$NMWAG$+$i(Bend$BHVL\$NMWAG$^$G$N(B $BItJ,G[Ns$rJV$7$^$9!%(Bstart$B$NCM$,Ii$N;~$K$OKvHx$+$i$N%$%s%G%C%/%9$H(B $B8+Jo$7$^$9(B($BKvHx$NMWAG$,(B -1 $BHVL\(B)$B!%(Bstart$B$NCM$,G[Ns$NHO0O$K(B $B<}$^$i$J$$>l9g(Bnil$B$rJV$7$^$9!%(Bend$B$NCM$,(B $BG[Ns$ND9$5$r1[$($k;~$K$O!$1[$($?J,$ND9$5$OL5;k$5$l$^$9!%(B $B$^$?!$HO0O$N;OE@$,=*E@$h$j$bBg$-$$;~$K$O(Bnil$B$rJV$7$^$9!%(B

self[start, length]

start$BHVL\$+$i(Blength$B8D$NMWAG$r4^(B $B$`ItJ,G[Ns$rJV$7$^$9!%(Bstart$B$NCM$,Ii$N;~$K$OKvHx$+$i$N%$%s%G%C%/%9$H(B $B8+Jo$7$^$9(B($BKvHx$NMWAG$,(B -1 $BHVL\(B)$B!%(Blength$B$,(Bstart $BHVL\$+$i$NG[Ns$ND9$5$h$jD9$$;~$K$O!$1[$($?J,$ND9$5$OL5;k$5$l(B $B$^$9!%(Blength$B$,Ii$N;~$K$O(Bnil$B$rJV$7$^$9!%(B

self[nth] = val

nth$BHVL\$NMWAG$r(Bval$B$K@_Dj$7$^$9!%(B nth$B$,G[Ns$NHO0O$r1[$($k;~$K$OG[Ns$,<+F0E*$K3HD%$5(B $B$l$^$9!%3HD%$5$l$?$b$N$NBeF~$5$l$J$+$C$?MWAG$O(B nil $B$K=i4|2=$5$l$^$9!%(B

self[start..end] = val

start$BHVL\$NMWAG$+$i(Bend$BHVL\$NMWAG$^$G$r(B $BG[Ns(Bval$B$NFbMF$KCV49$7$^$9!%(Bval$B$NCM$,G[(B $BNs$G$J$$$H$-$K$O(Bto_a$B%a%=%C%I$r;H$C$FG[Ns$KJQ49(B $B$7$^$9!%(Bval$B$NMWAG$N?t$NJ}$,B?$$;~$K$O!$8e$m$NMWAG(B $B$,$:$l$^$9!%(B

self[start, length] = val

start$BHVL\$+$i(Blength$B8D$NMWAG$rG[Ns(B val$B$NFbMF$GCV$-49$($^$9!%(Bval$B$,G[Ns$G$J(B $B$$$H$-$K$O(Bto_a$B%a%=%C%I$r;H$C$FG[Ns$KJQ49$7$^$9!%(B val$B$NMWAG$N?t$NJ}$,B?$$;~$K$O!$8e$m$NMWAG$,$:$l$^(B $B$9!%$G$9$+$i!$(Blength$B$,(B0$B$N;~$K$O%$%s%G%C%/%9D>A0$N(B $B0LCV$X$NA^F~$K$J$j$^$9!%(B

$BNc(B:

ary = [1, 2, 3, 4, 5]
ary[0..2] = [0, 0] # $BG[Ns$NFbMF$O(B [0, 0, 4, 5]
ary[1, 0] = [7]    # $BG[Ns$NFbMF$O(B [0, 7, 0, 4, 5]

self + other

$BG[Ns$NO"7k$r9T$$$^$9!%(Bself$B$H(Bother$B$N(B $BN>J}$NG[Ns$NFbMF$r7R$2$??7$7$$G[Ns$rJV$7$^$9!%(B

self * times

$BG[Ns$N7+$jJV$7!%(B

self - other

$B=89g$N:91i;;!%(Bself$B$+$i(Bother$B$NMWAG$r(B $B

self & other

$B=89g$N@Q1i;;!%N>J}$NG[Ns$K4^$^$l$kMWAG$+$i$J$k?7$7$$G[Ns$rJV(B $B$7$^$9!%=EJ#$9$kMWAG$O

self | other

$B=89g$NOB1i;;!%N>J}$NG[Ns$K$$$:$l$+$K4^$^$l$kMWAG$rA4$F4^$`?7$7(B $B$$G[Ns$rJV$7$^$9!%=EJ#$9$kMWAG$O

self << obj

obj$B$rG[Ns$NKvHx$KDI2C$7$^$9!%$3$N%a%=%C%I$OG[Ns$=$N$b$N$rJV(B $B$9$N$G!$0J2<$N$h$&$KO":?$G$-$^$9!%(B

array << obj1 << obj2

$B$3$N>l9g(Barray$B$K$O(B[obj1, obj2]$B$,DI2C$5$l$^$9!%(B

self <=> other

self$B$H(Bother$B$N3FMWAG$r$=$l$>$l=g$K(B <=>$B$GHf3S$7$F!$(Bself$B$,Bg$-$$(B $B;~$K@5!$Ey$7$$;~$K#0!$>.$5$$;~$KIi$N@0?t$rJV$7$^$9!%3FMWAG$,(B $BEy$7$$$^$^!$0lJ}$@$1G[Ns$NKvHx$KC#$7$?;~$O!$$h$jC;$$G[Ns$NJ}(B $B$,>.$5$$$H$_$J$7$^$9!%(B

assoc(key)

$BG[Ns$NG[Ns$r8!:w$7$F!$$=$N(B0$BHVL\$NMWAG$,(Bkey$B$KEy$7$$$b$N(B $B$rJV$7$^$9!%Hf3S$O(B==$B1i;;;R$r;H$C$F9T$o$l$^$9!%(B

a = [[1,2],[2,4],[3,6]]
a.assoc(2)		# => [2, 4]

clear

$BG[Ns$NBg$-$5$r(B0$B$K$7$^$9!%(B

concat(other)

$BG[Ns(Bother$B$NMWAG$rG[Ns$NKvHx$K(B($BGK2uE*$K(B)$BDI2C$7$^$9!%(B other$B$,G[Ns$G$J$$;~$K$OJQ49$5$l$^$9!%(B

compact

compact!

$BG[Ns$+$i(Bnil$B$rcompact!$B$O:o=|$rGK2uE*$K9T$$$^$9!%(B

delete(val)

delete(val){ ... }

$BG[Ns$+$iMWAG(Bval$B$r:o=|$7$^$9!%%V%m%C%/$r;XDj$7$F8F(B $B$S=P$5$l$?;~$K$O!$:o=|$9$kMWAG$,$J$+$C$?;~$K%V%m%C%/$rI>2A$7(B $B$^$9!%(B

delete_at(pos)

pos$B$G;XDj$5$l$?0LCV$K$"$kMWAG$rnil$B$rJV$7$^$9!%(B

delete_if {|x|...}

reject!{|x|...}

$BMWAG$KBP$7$F%V%m%C%/$rI>2A$7!$%V%m%C%/$,??$rJV$7$?MWAG$r:o=|(B $B$7$^$9!%(B

clone

dup

$B%l%7!<%P$HF1$8FbMF$r;}$D?7$7$$G[Ns$rJV$7$^$9!%%U%j!<%:$7$?G[(B $BNs$N(Bclone$B$OF1MM$K%U%j!<%:$5$l$?G[Ns$rJV$7$^$9$,!$(B dup$B$OFbMF$NEy$7$$%U%j!<%:$5$l$F$$$J$$G[Ns$rJV$7(B $B$^$9!%(B

each {...}

$B3FMWAG$KBP$7$F%V%m%C%/$rI>2A$7$^$9!%(B

each_index {...}

$B3FMWAG$N%$%s%G%C%/%9$KBP$7$F%V%m%C%/$rI>2A$7$^$9!%(B $B$D$^$j!$(B(0...ary.size).each {}$B$HF1$8$G$9!%(B

empty?

$BG[Ns$,6u$N;~??$rJV$7$^$9!%(B

fill(val)

fill(val, start[, length])

fill(val, start..end)

$BG[Ns(B($B$N;XDj$5$l$?ItJ,(B)$B$NMWAG$NCM$r(Bval$B$K@_Dj$7$^$9!%(B 2$BHV$a$N7A<0$G(Blength$B$,>JN,$5$l$?;~$OG[Ns$N=*$j$^$G(B $B$ND9$5$r0UL#$7$^$9!%;XDj$5$l$?ItJ,G[Ns$,85$NG[Ns$NHO0O$r1[$((B $B$k;~$O<+F0E*$K3HD%$5$l!$3HD%$5$l$?ItJ,$O(Bnil$B$K=i(B $B4|2=$5$l$^$9!%(B

filter{|item| ..}

$BG[Ns$N3FMWAGFbMF$r!$$=$NMWAG$r0z?t$K$7$F%V%m%C%/$rI>2A$7$?CM(B $B$KCV$-49$($^$9!%(B

flatten

flatten!

$B%M%9%H$7$?G[Ns$rJ?3j2=$7$^$9!%(Bflatten!$B$OG[Ns$r(B $BGK2uE*$KJ?3j2=$7$^$9$,!$G[Ns$,%M%9%H$7$F$$$J$$$H$-$K$O(B nil$B$rJV$7$^$9!%(B

freeze

$BG[Ns$NFbMF$NJQ99$r6X;_$7$^$9!%(B

frozen?

$BG[Ns$NFbMF$N99?7$,6X;_$5$l$F$$$k;~??$rJV$7$^$9!%(B

include?(val)

$BG[Ns$,(Bval$B$HEy$7$$MWAG$r;}$D;~$K??$rJV$7$^$9!%(B

index(val)

val$B$HEy$7$$:G=i$NMWAG$N0LCV$rJV$7$^$9!%Ey$7$$MWAG(B $B$,$R$H$D$b$J$+$C$?;~$K$O(Bnil$B$rJV$7$^$9!%(B

indexes(index_1,..., index_n)

indices(index_1,..., index_n)

$B3F0z?t$NCM$r%$%s%G%C%/%9$H$9$kMWAG$NG[Ns$rJV$7$^$9!%G[Ns$K4^(B $B$^$l$J$$MWAG$,;XDj$5$l$F$bL5;k$5$l$^$9!%(B

join([sep])

$BG[Ns$NMWAG$r(Bsep$B$r4V$K64$s$GO"7k$7$?J8;zNs$rJV$7$^(B $B$9!%(Bsep$B$,>JN,$5$l$?>l9g$K$OJQ?t(B$, $B$NCM$,;H$o$l$^$9!%(B

length

size

$BG[Ns$ND9$5$rJV$7$^$9!%(B

nitems

nil$B$G$J$$MWAG$N?t$rJV$7$^$9!%(B

pack(template)

$BG[Ns$NFbMF$r(Btemplate$B$G;XDj$5$l$?J8;zNs$K$7$?$,$C(B $B$F!$%P%$%J%j$H$7$F%Q%C%/$7$?J8;zNs$rJV$7$^$9!%%F%s%W%l!<%H$O(B $B7?;XDjJ8;zNs$H$=$ND9$5(B($B>JN,;~$O(B1)$B$rJB$Y$?$b$N$G$9!%D9$5$H$7(B $B$F(B*$B$,;XDj$5$l$?;~$O!V;D$j$N%G!<%?A4$F!W$ND9$5$r(B $BI=$7$^$9!%7?;XDjJ8;z$O0J2<$NDL$j$G$9!%(B

a

ASCII$BJ8;zNs(B(null$B$r5M$a$k(B)

A

ASCII$BJ8;zNs(B($B%9%Z!<%9$r5M$a$k(B)

b

$B%S%C%H%9%H%j%s%0(B($B2<0L%S%C%H$+$i>e0L%S%C%H(B)

B

$B%S%C%H%9%H%j%s%0(B($B>e0L%S%C%H$+$i2<0L%S%C%H(B)

h

16$B?JJ8;zNs(B($B2<0L%K%V%k$,@h(B)

H

16$B?JJ8;zNs(B($B>e0L%K%V%k$,@h(B)

c

char

C

unsigned char

s

short

S

unsigned short

i

int

I

unsigned int

l

long

L

unsigned long

m

base64$B$5$l$?J8;zNs(B

n

$B%M%C%H%o!<%/%P%$%H%*!<%@!<$N(Bshort

N

$B%M%C%H%o!<%/%P%$%H%*!<%@!<$N(Blong

v

"VAX"$B%P%$%H%*!<%@! V

"VAX"$B%P%$%H%*!<%@! f

$BC1@:EYIbF0>.?tE@?t(B($B5! d

$BG\@:EYIbF0>.?tE@?t(B($B5! p

$B%J%k=*C<$NJ8;zNs$X$N%]%$%s%?(B

P

$B9=B$BN(B($B8GDjD9J8;zNs(B)$B$X$N%]%$%s%?(B

u

uuencoded$B$5$l$?J8;zNs(B

x

$B%J%k%P%$%H(B

X

1$B%P%$%H8eB`(B

@

$B@dBP0LCV$X$N0\F0(B

pop

$BG[Ns$NKvHx$NMWAG$rnil$B$rJV$7$^$9!%(B

push(obj...)

obj$B$rG[Ns$NKvHx$KDI2C$7$^$9!%(B

rassoc(value)

$BG[Ns$NG[Ns$r8!:w$7$F!$$=$N(B1$BHVL\$NMWAG$,(Bvalue$B$KEy$7$$$b$N(B $B$rJV$7$^$9!%Hf3S$O(B==$B1i;;;R$r;H$C$F9T$o$l$^$9!%(B

a = [[1,2],[2,4],[3,6]]
a.rassoc(2)		# => [1, 2]

replace(other)

$BG[Ns$NFbMF$r(Bother$B$NFbMF$GCV$-49$($^$9!%(B

reverse

reverse!

reverse$B$OA4$F$NMWAG$r5U=g$KJB$Y$?G[Ns$rJV$7$^$9!%(B reverse!$B$OG[Ns$NMWAG$r5U=g$K(B($BGK2uE*$K(B)$BJB$YBX$($^$9!%(B

reverse_each {...}

$B3FMWAG$KBP$7$F5U=g$K%V%m%C%/$rI>2A$7$^$9!%(B

rindex(val)

val$B$HEy$7$$:G8e$NMWAG$N0LCV$rJV$7$^$9!%Ey$7$$MWAG(B $B$,$R$H$D$b$J$+$C$?;~$K$O(Bnil$B$rJV$7$^$9!%(B

shift

$BG[Ns$N@hF,$NMWAG$rnil$B$rJV$7$^$9!%(B

sort

sort!

sort {|a, b|...}

sort! {|a, b|...}

$BG[Ns$NFbMF$r%=!<%H$7$^$9!%%V%m%C%/$rM?$($F8F$S=P$5$l$?;~$K$O(B $B%V%m%C%/$r(B2$B0z?t$rM?$($FI>2A$7!$$=$N7k2L$GHf3S$7$^$9!%(B $B%V%m%C%/$,$J$$;~$K$O(B<=>$B1i;;;R$r;H$C$F(B $BHf3S$7$^$9!%(Bsort$B$O%=!<%H$5$l$??7$7$$G[Ns$rJV$7!$(B sort!$B$OG[Ns$NFbMF$r$=$N>l$G%=!<%H$7$^$9!%(B

uniq

uniq!

$BG[Ns$+$i=EJ#$7$?MWAG$runiq!$B$O:o=|$rGK2uE*$K9T$$$^$9!%(B

unshift(obj)

obj$B$rG[Ns$N@hF,$KDI2C$7$^$9!%3FMWAG$O$R$H$D$:$D8e(B $B$m$K$:$l$^$9!%(B

matz@netlab.co.jp