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Line 1,450: ==== Visual Prolog ==== Anonymous functions (in general anonymous ''predicates'') were introduced in [[Visual Prolog]] in version 7.2.<ref>{{cite web \|title=Anonymous Predicates \|url=http://wiki.visual-prolog.com/index.php?title=Language_Reference/Terms#Anonymous_Predicates ~~}}{{Dead link\|date=September 2023 \|bot=InternetArchiveBot \|fix-attempted=yes~~ }} in Visual Prolog Language Reference</ref> Anonymous predicates can capture values from the context. If created in an object member, it can also access the object state (by capturing <code>This</code>). <code>mkAdder</code> returns an anonymous function, which has captured the argument <code>X</code> in the closure. The returned function is a function that adds <code>X</code> to its argument:

Anonymous function: Difference between revisions