Iterable types
An iterable type is an object that can be iterated over using the each plugin.
List of types
| array | each iterates over every item in the array |
| string | each iterates over every character in the string |
| +ve number | each iterates over every number from zero, up to the value |
| -ve number | each iterates over every number from -1, down to the value |
| object | each iterates over every property in the object |