What is an array?

An array or list is a group of values stored in a collection. These values may be added to, changed or rearranged.

For example in a game we could have an array called "top scores" and this would store the 10 highest scores of the game along with the player's name.

Top Scores

1. 482 - Gamerboy
2. 470 - SteveO
3. 465 - NinJane
4. 430 - Zeplin
5. 382 - Speedster

Once we create an array we can:

• Add items to it add 465 - NinJane to [top scores] 
• Delete items from it delete 1 of [top scores] (where 1 is the index of the item you want to delete)
• Delete all of the items in the array delete all of [top scores] 
• Retrieve an item from the array item 1 of [top scores] 
• Get the amount of items in the array length of [top scores] 
• Check if it contains a specific item [top scores] contains thing ? 
• Replace an item in an array with a different item replace item 1 of [top scores] with thing