Cons
In computer programming, cons
( /ˈkɒnz/ or /ˈkɒns/) is a fundamental function in most dialects of the Lisp programming language. cons
constructs memory objects which hold two values or pointers to values. These objects are referred to as (cons) cells, conses, non-atomic s-expressions ("NATSes"), or (cons) pairs. In Lisp jargon, the expression "to cons x onto y" means to construct a new object with (cons x y)
. The resulting pair has a left half, referred to as the car
(the first element), and a right half (the second element), referred to as the cdr
.
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