Set() constructor
The Set constructor lets you
create Set objects that store unique values of any type, whether primitive values or object
references.
Try it
Syntax
new Set()
new Set(iterable)
Parameters
iterableOptional-
If an iterable object is passed, all of its elements will be added to the new
Set.If you don't specify this parameter, or its value is
null, the newSetis empty.
Return value
A new Set object.
Examples
Using the Set object
let mySet = new Set()
mySet.add(1) // Set [ 1 ]
mySet.add(5) // Set [ 1, 5 ]
mySet.add(5) // Set [ 1, 5 ]
mySet.add('some text') // Set [ 1, 5, 'some text' ]
let o = {a: 1, b: 2}
mySet.add(o)
Specifications
| Specification |
|---|
| ECMAScript Language Specification # sec-set-constructor |
Browser compatibility
BCD tables only load in the browser