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TopLevel
Class Set
Object
Set
A Set can store any kind of element and ensures that no duplicates exist. Objects are stored and iterated in insertion order.
API Versioned:
From version 21.2.
Properties
size  :  Number
Number of elements stored in this set.
Constructor Summary
Set()
Creates an empty Set.
Set(values : Iterable)
If the passed value is null or undefined then an empty set is constructed.
Method Summary
add(object : Object) : Set
Adds an element to the set.
clear() : void
Removes all elements from this set.
delete(object : Object) : boolean
Removes the element from the set.
entries() : ES6Iterator
Returns an iterator containing all elements of this set.
forEach(callback : Function) : void
Runs the provided callback function once for each element present in this set.
forEach(callback : Function, thisObject : Object) : void
Runs the provided callback function once for each element present in this set.
has(object : Object) : boolean
Returns if this set contains the given object.
Constructor Detail
Set
public Set()
Creates an empty Set.

Set
public Set(values : Iterable)
If the passed value is null or undefined then an empty set is constructed. Else an iterable object is expected that delivers the initial set entries.
Parameters:
values - The initial set entries.

Method Detail
add
add(object : Object) : Set
Adds an element to the set. Does nothing if the set already contains the element.
Parameters:
object - The object to add.
Returns:
This set object.

clear
clear() : void
Removes all elements from this set.

delete
delete(object : Object) : boolean
Removes the element from the set.
Parameters:
object - The object to be removed.
Returns:
true if the set contained the object that was removed. Else false is returned.

entries
entries() : ES6Iterator
Returns an iterator containing all elements of this set.

forEach
forEach(callback : Function) : void
Runs the provided callback function once for each element present in this set.
Parameters:
callback - The function to call, which is invoked with three arguments: the element (as value), the element (as index), and the Set object being iterated.

forEach
forEach(callback : Function, thisObject : Object) : void
Runs the provided callback function once for each element present in this set.
Parameters:
callback - The function to call, which is invoked with three arguments: the element (as value), the element (as index), and the Set object being iterated.
thisObject - The Object to use as 'this' when executing callback.

has
has(object : Object) : boolean
Returns if this set contains the given object.
Parameters:
object - The object to look for.
Returns:
true if the set contains the object else false is returned.