Constructor
Number of items stored in set
Adds one or more items to set. add
event is fired for each item
Rest
...values: V[]items to add
Adds event listener.
Events
Event name
Event handler
Delete value from set.
Value to delete
True if item was found and removed
Protected
fireFire event
Type of event
Arguments for event
Returns true if item exists in set
Remove event listener
Mutable string set