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検索結果
先頭5件
-
Complex
# coerce(other) -> [Complex , Complex] (29322.0) -
other を Complex に変換して [変換後の other, self] の配列を返します。
...other を Complex に変換して [変換後の other, self] の配列を返します。
@raise TypeError 変換できないオブジェクトを指定した場合に発生します。
//emlist[例][ruby]{
Complex(1).coerce(2) # => [(2+0i), (1+0i)]
//}... -
Class
# subclasses -> [Class] (29224.0) -
自身が直接のスーパークラスになっている(特異クラスを除く)クラスの配列を返します。 返り値の配列の順序は未定義です。
...を除く)クラスの配列を返します。
返り値の配列の順序は未定義です。
//emlist[例][ruby]{
class A; end
class B < A; end
class C < B; end
class D < A; end
A.subclasses # => [D, B]
B.subclasses # => [C]
C.subclasses # => []
//}
@see Class#superclass... -
Class
# superclass -> Class | nil (29218.0) -
自身のスーパークラスを返します。
...例][ruby]{
File.superclass #=> IO
IO.superclass #=> Object
class Foo; end
class Bar < Foo; end
Bar.superclass #=> Foo
Object.superclass #=> BasicObject
//}
ただし BasicObject.superclass は nil を返します。
//emlist[例][ruby]{
BasicObject.superclass......#=> nil
//}
@see Class#subclasses... -
Complex
# conj -> Complex (29206.0) -
自身の共役複素数を返します。
...自身の共役複素数を返します。
//emlist[例][ruby]{
Complex(1, 2).conj # => (1-2i)
//}... -
Complex
# conjugate -> Complex (29206.0) -
自身の共役複素数を返します。
...自身の共役複素数を返します。
//emlist[例][ruby]{
Complex(1, 2).conj # => (1-2i)
//}... -
CSV
:: Table # to _ csv(options = Hash . new) -> String (29118.0) -
CSV の文字列に変換して返します。
...
CSV の文字列に変換して返します。
ヘッダを一行目に出力します。その後に残りのデータを出力します。
デフォルトでは、ヘッダを出力します。オプションに :write_headers =>
false を指定するとヘッダを出力しません。
//emli......st[][ruby]{
require 'csv'
csv = CSV.new("a,b,c\n1,2,3", headers: true)
table = csv.read
p table.to_csv # => "a,b,c\n1,2,3\n"
p table.to_csv(write_headers: false) # => "1,2,3\n"
//}... -
CSV
:: Row # to _ csv -> String (29106.0) -
自身を CSV な文字列として返します。ヘッダは使用しません。
...自身を CSV な文字列として返します。ヘッダは使用しません。
//emlist[例][ruby]{
require "csv"
row = CSV::Row.new(["header1", "header2"], [1, 2])
row.to_csv # => "1,2\n"
row.to_csv( {col_sep: "|", row_sep: "<br>"} ) # => "1|2<br>"
//}... -
VALUE CHR2FIX(char x) (26216.0)
-
char 型の整数 x を Ruby の Fixnum に変換します。
...
char 型の整数 x を Ruby の Fixnum に変換します。... -
CSV
# encoding -> Encoding (26206.0) -
読み書きするときに使用するエンコーディングを返します。
...読み書きするときに使用するエンコーディングを返します。
//emlist[例][ruby]{
require "csv"
csv = CSV.new("header1,header2\nrow1_1,row1_2", headers: true)
csv.encoding # => #<Encoding:UTF-8>
//}...