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==Language comparison==
The map function is especially common in [[functional programming]] languages, but some [[high-level programming language|high-level]] [[procedural programming|procedural]] languages support it as well, and in others it may be defined. [[Common Lisp]] provides a whole family of map-like functions. The one that corresponds to the behavior described here is called <code>mapcar</code>, where the <code>-car</code> designation indicates access using the [[CAR and CDR|CAR operation]]. In [[C++]]'s [[Standard Template Library]], the map function is called <code>transform</code>. It also frequently used as an array operation in scripting languages such as [[Perl]], [[Python (programming language)|Python]] and [[Ruby (programming language)|Ruby]]; the operation is called <code>map</code> in Perl and Python and <code>collect</code> in Ruby.
==Optimizations==
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