[WiseWeasel]

That's because arrays do get more complicated than flat lists like the example I gave above. You can actually have multiple organized data points in each position of the array as well, making arrays function more as a 2D relational database than as a flat list of data.

For example, I could make an address book array with multiple data points as such:

    var addressbook = [{"firstname": "John", "lastname": "Doe", "phone": "555-555-5555", "email": "[e-mail]"}, {"firstname": "Jane", "lastname": "Smith", "phone": "666-666-6666", "email": "[e-mail]"}]

Then, I can retrieve a piece of information like Jane's phone number like this:

    var janesnumber = addressbook[1].phone

Arrays are very powerful tools, especially once you start referencing other arrays in them, as it allows complex organization of data without always needing to resort to a database solution, with a whole new language to learn.