Dynamic Arrays

VBScript supports dynamic arrays, whose size can change during runtime. Dynamic arrays can change

the number of dimensions and the size of any or all dimensions. These arrays are initially declared

using the Dim (or ReDim) keyword followed by a closed parenthesis. Then, prior to using the dynamic

array, the ReDim keyword is used to specify the number of dimensions and size of each dimension.

The ReDim can subsequently be used to modify the dynamic array’s number of dimensions or size of

each dimension. The Preserve keyword can be used to preserve the contents of the array as the

resizing takes place.

For example:

Dim MyArray(), x

ReDim MyArray(19) ‘ MyArray has 20 elements

MyArray(0) = 10 ‘ Assign values to first 2 elements

MyArray(1) = 20

ReDim Preserve MyArray(24) ‘ change MyArray to a 25 element array

x = MyArray(0) ‘ variable x is assigned value of 10

There is no limit to the number of times you can resize a dynamic array. However, if you make the array

smaller you will lose the data in the eliminated elements