NAME
ListEndIndex — Return index of last element in list.
SYNOPSIS
ListEndIndex ListValue
DESCRIPTION
Return Value
Index of last element in list. -1 if empty list.
Arguments
ListValueList to find the index of the last element.
More Info
Note that this will return -1 if the list is empty.

For information regarding exceptions / errors, see here.
EXAMPLES 
% ListEndIndex [list zero one]
1
SEE ALSO
llength
KEYWORDS
list