Course of Raku / Advanced / Containers / Ordered containers

Arrays

An array is an ordered container whose elements are themselves scalar containers.

my @array = 100, 200, 300;
my @letters = 'a', 'b', 'c';

The @ sigil indicates that such a variable behaves as a Positional object, so you can subscript it to access individual elements:

say @array[1];   # 200
say @letters[2]; # c

Because every element is a scalar container, you can assign a new value to it, exactly as you would with a standalone scalar variable:

my @array = 100, 200, 300;
@array[0] = 10;
say @array; # [10 200 300]

You can also assign a value of a different type, for example:

my @array = 100, 200, 300;
@array[0] = 'ten';
say @array; # [ten 200 300]

This is what makes arrays mutable: each slot is a container that can receive a new value. As you will see in the next topic, lists behave differently.

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