Decent introduction, but should probably mention more about different ways to populate arrays. In these examples someone new to programming would think "Why not

Decent introduction, but should probably mention more about different ways to populate arrays. In these examples someone new to programming would think "Why not just do value1, value2, value3, etc..." Maybe showing how one can loop through items, or access items with variable. Or even how you can populate arrays with other values (talking about .push() would be a good idea)