Value? - Function Summary

Summary:

Returns TRUE if the word has been set.

Usage:

value? value

Arguments:

value - The value argument.

Description:

Returns FALSE for all other values. The word can be passed as a literal or as the result of other operations.

test: 1234 print value? 'test true

print value? second [test this] false

Related:

equal? - Returns TRUE if the values are equal.
same? - Returns TRUE if the values are identical.
strict-equal? - Returns TRUE if the values are equal and of the same datatype.
unset? - Returns TRUE for unset values.