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The UBound function returns the upper limit for the number of elements
in an array (the elements can be empty). The UBound function
returns the largest subscript for the indicated dimension of an
array. Returns the largest available subscript for the indicated
dimension of an array. The UBound function is used with the LBound
function to determine the size of an array. Use the LBound function
to find the lower limit of an array dimension. The default lower
bound for any dimension is always 0.
Tip :- Use the UBound function with the LBound function
to determine the size of an array.
The Syntax of the UBound function is :-
| UBound(arrayname[,dimension]) |
Its Description is :-
| Parameter |
Description |
| arrayname |
Required. The name of the array variable |
| dimension |
Optional. Which dimension's upper bound to return. 1 = first
dimension, 2 = second dimension, and so on. Default is 1 |
Example#1 :-
Code :-
dim a(10)
a(0)="Saturday"
a(1)="Sunday"
a(2)="Monday"
a(3)="Tuesday"
a(4)="Wednesday"
a(5)="Thursday"
document.write(UBound(a))
document.write("<br />")
document.write(LBound(a))
Output :-
10
0 |
Example#2 :-
Dim A(100,3,4)
| Statement
| Return Value |
| Ubound(A, 1) |
99 |
| Ubound(A, 2) |
2 |
| Ubound(A, 3) |
3 |
There is One Mandatory Argument :-
Example#3 :-
It explains the ArrayName Argument
Code :-
<% Dim katarray(5) %>
<% katarray(0) = "Mountain lion" %>
<% katarray(1) = "Bobcat" %>
<% katarray(2) = "Jaguar" %>
<% =UBound(katarray) %>
Output :-
5
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There is One Optional Argument :-
Example#4 :-
It explains the Dimension Argument
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
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