FUNCTION:  UBound( )
UBound(ArrayName, Dimension)
 
The UBound function returns the upper limit for the number of elements in an array (the elements can be empty).

There is one mandatory argument.
 
ArrayName
 
The ArrayName argument is the name of the array. Do not include the parenthesis with the array name.
 
Code:
<% Dim katarray(5) %>
<% katarray(0) = "Mountain lion" %>
<% katarray(1) = "Bobcat" %>
<% katarray(2) = "Jaguar" %>
<% =UBound(katarray) %>
 
Output:
5
 
There is one optional argument.
 
Dimension
 
The optional Dimension argument is used to identify which index you are determining the upper bounds for in a multi-dimensional array.
 
Code:
<% Dim arrayfish(4,6) %>
<% arrayfish(0,0) = "Neon tetra" %>
<% arrayfish(0,1) = "Angle fish" %>
<% arrayfish(0,2) = "Discus" %>
<% arrayfish(1,0) = "Golden dojo" %>
<% arrayfish(1,1) = "Clown loach" %>
<% arrayfish(1,2) = "Betta" %>
<% =UBound(arrayfish, 2) %>
 
Output:
6