Map (higher-order function): Difference between revisions

Revision as of 03:49, 7 September 2023

Revision as of 15:44, 20 November 2023

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{{one source|date=November 2012}}

In many [[programming language]]s, '''map''' is the name of a [[higher-order function]] that applies a [[procedural parameter|given function]] to each element of a [[Collection (abstract data type)|collection]], e.g. a [[list (computing)|list]] or [[set (abstract data type)|set]], returning the results in a collection of the same type. It is often called ''apply-to-all'' when considered in [[functional form]].

The concept of a map is not limited to lists: it works for sequential [[Container (abstract data type)|containers]], tree-like containers, or even abstract containers such as [[futures and promises]].