# Constant [*Concept*]

## Purpose

The **Constant** predicate tests whether a given object is a Loom constant.

## Syntax

**Constant** *object*

## Argument

The *object* argument is any object.

## Value

The **Constant** predicate returns **t** if *object* is a number, character, string, symbol, or list.

## Examples

(ask (Constant 98.6)) ==> T
(ask (Constant \#\a)) ==> T
(ask (Constant "abc")) ==> T
(ask (Constant 'foo)) ==> T
(ask (Constant '(a b c))) ==> T
(ask (Constant ())) ==> T
(ask (Constant Thing)) ==> NIL

## See Also

Last modified: Jun 1 1995