Using List Arrays
Using a list array
-
The benefit of ordering the elements in a list array is that we can easily
grab one value out of the list on demand. To do this, we use Perl's
subscripting operator using the format:
$array_name[list_element_number]
When pulling an element out of a list array, we create a scalar
variable with the same name as the array, prefixed with the usual dollar
sign that denotes scalar variables.
For example, the first element of the array @available_colors is accessed
as $available_colors[0].
Notice that the first element is accessed with a zero. This is important.
List arrays begin counting at zero, not one. Thus, $available_colors[0]
is a variable placeholder for the word "red". Likewise, $available_colors[1]
equals "green" and $available_colors[2] equals "blue".
Additional Resources:
 Perl
List Arrays
Table of Contents
Figuring out
how many elements are in an array
|
