VBScript LBound Function

The LBound Function returns the smallest subscript of the specified array. Hence, LBound of an array is ZERO.

Syntax

LBound(ArrayName[,dimension])

ArrayName, a Required parameter. This parameter corresponds to the name of the array.
dimension, an Optional Parameter. This takes an integer value that corresponds to the dimension of the array. If it is '1', then it returns the lower bound of the first dimension; if it is '2', then it returns the lower bound of the second dimension and so on.

Example

<!DOCTYPE html>
<html>
   <body>
      <script language = "vbscript" type = "text/vbscript">
         Dim arr(5)
         arr(0) = "1"            'Number as String
         arr(1) = "VBScript      'String
         arr(2) = 100            'Number
         arr(3) = 2.45           'Decimal Number
         arr(4) = #10/07/2013#   'Date
         arr(5) = #12.45 PM#     'Time

         document.write("The smallest Subscript value of  the given array is : " & LBound(arr))

         ' For MultiDimension Arrays :
         Dim arr2(3,2)
         document.write(
            "The smallest Subscript of the first dimension of arr2 is : " & LBound(arr2,1) & "<br />")
         document.write(
            "The smallest Subscript of the Second dimension of arr2 is : " & LBound(arr2,2) & "<br />")

      </script>
   </body>
</html>

When the above code is saved as .html and executed in Internet Explorer, it produces the following result−

The smallest Subscript value of the given array is : 0
The smallest Subscript of the first dimension of arr2 is : 0
The smallest Subscript of the Second dimension of arr2 is : 0

vbscript_arrays.htm