#### 18.2.1 hash-table [System Class]

#### Class Precedence List::

hash-table, t

#### Description::

Hash tables provide a way of mapping any object (a key) to an associated object (a value).

#### See Also::

Hash Table Concepts, Printing Other Objects

#### Notes::

The intent is that this mapping be implemented by a hashing mechanism, such as that described in Section 6.4 “Hashing” of The Art of Computer Programming, Volume 3 (pp506-549). In spite of this intent, no conforming implementation is required to use any particular technique to implement the mapping.