Ruby 3.1: String

(String.instance_methods - Object.instance_methods).shuffle[0,100]
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問題文
(to_str)
to_str
(clear)
clear
(delete!)
delete!
(intern)
intern
(to_i)
to_i
(slice!)
slice!
(swapcase)
swapcase
(unicode_normalize)
unicode_normalize
(setbyte)
setbyte
(to_sym)
to_sym
(next)
next
(delete_suffix)
delete_suffix
(delete_suffix!)
delete_suffix!
(to_r)
to_r
(+@)
+@
(tr!)
tr!
(downcase)
downcase
(lstrip!)
lstrip!
(upto)
upto
([])
[]
(sub)
sub
(size)
size
(lstrip)
lstrip
(swapcase!)
swapcase!
(center)
center
(rstrip)
rstrip
(strip)
strip
(<<)
<<
(rjust)
rjust
(unicode_normalize!)
unicode_normalize!
(match)
match
(byteslice)
byteslice
(codepoints)
codepoints
(delete_prefix!)
delete_prefix!
(ljust)
ljust
(squeeze!)
squeeze!
(force_encoding)
force_encoding
(getbyte)
getbyte
(delete)
delete
(bytesize)
bytesize
(prepend)
prepend
(<=)
<=
(length)
length
(hex)
hex
(strip!)
strip!
(split)
split
(grapheme_clusters)
grapheme_clusters
(%)
%
(+)
+
(downcase!)
downcase!
(undump)
undump
(casecmp?)
casecmp?
(match?)
match?
(encode)
encode
(tr_s)
tr_s
(upcase!)
upcase!
(crypt)
crypt
(sub!)
sub!
(replace)
replace
(>=)
>=
(between?)
between?
(to_c)
to_c
(delete_prefix)
delete_prefix
(gsub!)
gsub!
(index)
index
(concat)
concat
(rindex)
rindex
(reverse)
reverse
(chomp!)
chomp!
(partition)
partition
(unpack1)
unpack1
(capitalize!)
capitalize!
(reverse!)
reverse!
(tr)
tr
(lines)
lines
(rpartition)
rpartition
(chop)
chop
(ord)
ord
(chop!)
chop!
(oct)
oct
(chr)
chr
(<)
<
(-@)
-@
(start_with?)
start_with?
(scrub!)
scrub!
(each_byte)
each_byte
(empty?)
empty?
(casecmp)
casecmp
(sum)
sum
(insert)
insert
(scan)
scan
(include?)
include?
(end_with?)
end_with?
(tr_s!)
tr_s!
(succ!)
succ!
(count)
count
(encoding)
encoding
(next!)
next!
(chars)
chars
(each_line)
each_line