Returns an array of the Integer ordinals of the characters in str. This is a shorthand for str.each_codepoint.to_a.
If a block is given, which is a deprecated form, works the same as each_codepoint.
Returns the Symbol corresponding to str, creating the symbol if it did not previously exist. See Symbol#id2name.
"Koala".intern #=> :Koala s = 'cat'.to_sym #=> :cat s == :cat #=> true s = '@cat'.to_sym #=> :@cat s == :@cat #=> true
This can also be used to create symbols that cannot be represented using the :xxx notation.
'cat and dog'.to_sym #=> :"cat and dog"
Returns true if str contains the given string or character.
"hello".include? "lo" #=> true "hello".include? "ol" #=> false "hello".include? ?h #=> true
If integer is greater than the length of str, returns a new String of length integer with str left justified and padded with padstr; otherwise, returns str.
"hello".ljust(4) #=> "hello" "hello".ljust(20) #=> "hello " "hello".ljust(20, '1234') #=> "hello123412341234123"
If integer is greater than the length of str, returns a new String of length integer with str right justified and padded with padstr; otherwise, returns str.
"hello".rjust(4) #=> "hello" "hello".rjust(20) #=> " hello" "hello".rjust(20, '1234') #=> "123412341234123hello"
Returns a copy of str with the characters in from_str replaced by the corresponding characters in to_str. If to_str is shorter than from_str, it is padded with its last character in order to maintain the correspondence.
"hello".tr('el', 'ip') #=> "hippo" "hello".tr('aeiou', '*') #=> "h*ll*" "hello".tr('aeiou', 'AA*') #=> "hAll*"
Both strings may use the c1-c2 notation to denote ranges of characters, and from_str may start with a ^, which denotes all characters except those listed.
"hello".tr('a-y', 'b-z') #=> "ifmmp" "hello".tr('^aeiou', '*') #=> "*e**o"
The backslash character \ can be used to escape ^ or - and is otherwise ignored unless it appears at the end of a range or the end of the from_str or to_str:
"hello^world".tr("\\^aeiou", "*") #=> "h*ll**w*rld" "hello-world".tr("a\\-eo", "*") #=> "h*ll**w*rld" "hello\r\nworld".tr("\r", "") #=> "hello\nworld" "hello\r\nworld".tr("\\r", "") #=> "hello\r\nwold" "hello\r\nworld".tr("\\\r", "") #=> "hello\nworld" "X['\\b']".tr("X\\", "") #=> "['b']" "X['\\b']".tr("X-\\]", "") #=> "'b'"
Translates str in place, using the same rules as String#tr. Returns str, or nil if no changes were made.
Returns the element of WIN32OLE_VARIANT object(OLE array). This method is available only when the variant type of WIN32OLE_VARIANT object is VT_ARRAY.
REMARK:
The all indices should be 0 or natural number and lower than or equal to max indices. (This point is different with Ruby Array indices.) obj = WIN32OLE_VARIANT.new([[1,2,3],[4,5,6]]) p obj[0,0] # => 1 p obj[1,0] # => 4 p obj[2,0] # => WIN32OLERuntimeError p obj[0, -1] # => WIN32OLERuntimeError
Returns a string containing the IP address representation in canonical form.
Convert self to ISO-2022-JP
Convert self to EUC-JP
Convert self to Shift_JIS
Convert self to UTF-8
Convert self to UTF-16
Convert self to UTF-32
Convert self to locale encoding
Returns whether self‘s encoding is EUC-JP or not.
Returns whether self‘s encoding is Shift_JIS or not.
Returns whether self‘s encoding is ISO-2022-JP or not.
Returns whether self‘s encoding is UTF-8 or not.
Scans the current string. If a block is given, it functions exactly like block_scanf.
arr = "123 456".scanf("%d%d") # => [123, 456] require 'pp' "this 123 read that 456 other".scanf("%s%d%s") {|m| pp m} # ["this", 123, "read"] # ["that", 456, "other"] # => [["this", 123, "read"], ["that", 456, "other"]]
See Scanf for details on creating a format string.
You will need to require ‘scanf’ to use String#scanf