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検索結果
先頭5件
-
Rational
# -(other) -> Rational | Float (21233.0) -
差を計算します。
...差を計算します。
@param other 自身から引く数
other に Float を指定した場合は、計算結果を Float で返しま
す。
//emlist[例][ruby]{
r = Rational(3, 4)
r - 1 # => (-1/4)
r - 0.5 # => 0.25
//}... -
Array
# -(other) -> Array (21215.0) -
自身から other の要素を取り除いた配列を生成して返します。
...自身から other の要素を取り除いた配列を生成して返します。
要素の同一性は Object#eql? により評価されます。
self 中で重複していて、other中に存在していなかった要素は、その重複が保持されます。
@param other 自身から取......場合は to_ary メソッドによ
る暗黙の型変換を試みます。
@raise TypeError 引数に配列以外の(暗黙の型変換が行えない)オブジェクトを
指定した場合に発生します。
//emlist[例][ruby]{
[1, 2, 1, 3, 1, 4] - [4, 2] #......=> [1, 1, 3, 1]
[1, 2, 1, 3, 1, 4] - [1, 4] # => [2, 3]
//}......=> [1, 1, 3, 1]
[1, 2, 1, 3, 1, 4] - [1, 4] # => [2, 3]
//}
@see Array#difference... -
Integer
# -(other) -> Numeric (21209.0) -
算術演算子。差を計算します。
...算術演算子。差を計算します。
@param other 二項演算の右側の引数(対象)
@return 計算結果
//emlist[][ruby]{
4 - 1 #=> 3
//}... -
Complex
# -(other) -> Complex (18215.0) -
差を計算します。
...差を計算します。
@param other 自身から引く数
//emlist[例][ruby]{
Complex(1, 2) - Complex(2, 3) # => (-1-1i)
//}... -
Float
# -(other) -> Float (18209.0) -
算術演算子。差を計算します。
...算術演算子。差を計算します。
@param other 二項演算の右側の引数(対象)
//emlist[例][ruby]{
# 差
4.5 - 1.3 # => 3.2
//}... -
Bignum
# -(other) -> Fixnum | Bignum | Float (18203.0) -
算術演算子。差を計算します。
...算術演算子。差を計算します。
@param other 二項演算の右側の引数(対象)
@return 計算結果... -
Fixnum
# -(other) -> Fixnum | Bignum | Float (18203.0) -
算術演算子。差を計算します。
...算術演算子。差を計算します。
@param other 二項演算の右側の引数(対象)
@return 計算結果... -
File
:: Stat # readable _ real? -> bool (12303.0) -
実ユーザ/実グループによって読み込み可能な時に真を返します。
...実ユーザ/実グループによって読み込み可能な時に真を返します。
//emlist[][ruby]{
p File::Stat.new($0).readable_real? #=> true
//}... -
Module
# prepend _ features(mod) -> self (12303.0) -
Module#prepend から呼び出されるメソッドで、 prepend の処理の実体です。このメソッド自体は mod で指定した モジュール/クラスの継承チェインの先頭に self を追加します。
...Module#prepend から呼び出されるメソッドで、
prepend の処理の実体です。このメソッド自体は mod で指定した
モジュール/クラスの継承チェインの先頭に self を追加します。
このメソッドを上書きすることで、prepend の処理を変......ram mod prepend を呼び出したモジュール
@return mod が返されます
//emlist[例][ruby]{
class Recorder
RECORDS = []
end
module X
def self.prepend_features(mod)
Recorder::RECORDS << mod
end
end
class A
prepend X
end
class B
include X
end
class C
prepend X
end
Recor......der::RECORDS # => [A, C]
//}
@see Module#prepend, Module#prepended... -
Encoding
:: Converter # primitive _ errinfo -> Array (9513.0) -
直前の Encoding::Converter#primitive_convert による変換の結果を保持する五要素の配列を返します。
...直前の Encoding::Converter#primitive_convert による変換の結果を保持する五要素の配列を返します。
@return [result, enc1, enc2, error_bytes, readagain_bytes] という五要素の配列
result は直前の primitive_convert の戻り値です。
それ以外の四要素は......t か :undefined_conversion だった場合に意味を持ちます。
enc1 はエラーの発生した原始変換の変換元のエンコーディング、enc2 は変換先のエンコーディングです。
error_bytes はエラーの発生原因となったバイト列、readagain_bytes は先......primitive_errinfo はもっぱら Encoding::Converter#primitive_convert と組み合わせて使います。Encoding::Converter#convert を用いている場合にも取得することはできますが、有用な使い方は難しいでしょう。
//emlist[][ruby]{
# \xff is invalid as EUC-JP....