!Important Note! Variants—Arrays with Differing Data Types

An array using different data types is known as a variant and can contain anything from a number to a Boolean value. Variants are not restricted in AutoIt; however, they are not recommended. Using differing data types in an array—especially arrays within an array—can dramatically decrease the execution speed of your scripts.

AutoIT Example 3. Two-Dimensional Array

Code:

$letter[0][0] = "w"
$letter[0][1] = "x"
$letter[1][0] = "y"
$letter[1][1] = "z"

A visual representation of Example 3 would be a 2×2 matrix as displayed in Figure 1.

AutoIT Constants and Arrays

Constants

 A constant is a variable that never changes. It remains a static value for the entire
script execution. You cannot change the value of a constant, nor can you convert
an existing variable into a constant. Placing Const after Dim, Global or Local makes
the variable a constant. You can also declare a constant variable without explicit
declaration. The following example illustrates how to declare a constant variable
in each scenario:

Code:

Const $example = 0
Dim Const $example1 = 1
Global Const $example2 = 2
Local Const $example3 = 3

Arrays

 An array is a matrix of data in which all the elements are of the same data type and
size. For example, an array of two numbers—“5” and “3”—is declared as follows:

Code:

$num[0] = "5"
$num[1] = "3"

Figure 1. Visual representation of Example 3. Two-Dimensional Array.
Arrays can also be multidimensional, with up to 64 dimensions. Example 3 shows a two-dimensional array.