Last Updated
：2025/11/23
contravariance
Noun
countable
uncountable
Japanese Meaning
オブジェクト指向プログラミングにおいて、演算子が作用するデータ型の順序が反転する現象・性質 / 圏論において、合成の順序を反転する関手の性質・概念
（ plural ）
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(object-oriented programming) The reversal of the order of data types acted upon by an operator. / (category theory) A functor which reverses composition.
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contravariance
Contravariance occurs when the order of data types acted upon by an operator is reversed, enabling safer assignment of function parameters in object-oriented programming.
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Contravariance occurs when the order of data types acted upon by an operator is reversed, enabling safer assignment of function parameters in object-oriented programming.
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