Declaring Array

An array will be declared by using the Keyword "Dim", Name of the array and by passing the Highest valid index (is also called as upper bound)

ex:

Dim A(10)

Although the number shown in the parentheses is 10, all arrays in
VBScript are zero-based, so this array actually contains 11
elements. In a zero-based array, the number of array elements is
always the number shown in parentheses plus one. This kind of an
array is called a fixed-size array.