Function object: Difference between revisions

Revision as of 05:09, 7 November 2017

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In a more theoretical context a ''function object'' may be considered to be any instance of the class of functions, especially in languages such as [[Common Lisp]] in which functions are [[first-class object]]s.

The [[functional programming]] languages [[ML (programming language)|ML]] andfamily of [[Haskellfunctional (programming language)|Haskell]] uselanguages uses the term ''functor'' to represent a [[function (mathematics)|mapping]] from modules to modules, or from types to types and is a technique for reusing code. Functors used in this manner are analogous to the original mathematical meaning of [[functor]] in [[category theory]], or to the use of generic programming in C++, Java or [[Ada (programming language)|Ada]].

In [[Haskell (programming language)|Haskell]], the term is used in the same sense as in category theory.

In [[Prolog]] and related languages, functor is a synonym for [[function symbol]].

In [[Prolog]] and related languages, ''functor'' is a synonym for [[function symbol]].

== See also ==