Returns the key at the supplied index.
Keys are guaranteed to remain at the same index until a modification is made.
key( index ) → {String}
| Name | Type | Description |
| index | Integer | 0-based index to the key.Must be less than the value retrieved by .length. |
The key, or null if the index is invalid.
[/reference/refbody/section/sectiondiv {""})Type:
String
(sectiondiv]// Create the SUP Storage
var store = new hwc.SUPStorage ("one");
store.setItem ("foo", "bar"); // add an item.
var result = store.key (0); // will returns "foo".