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This is a new technology, part of the ECMAScript 2015 (ES6) standard .
This technology's specification has been finalized, but check the compatibility table for usage and implementation status in various browsers.
The values() method returns a new Iterator object that contains the values for each element in the Set object in insertion order.
The keys() method is an alias for this method (for similarity with Map objects); it behaves exactly the same and returns values of Set elements.
Syntax
mySet.values();
mySet.keys();
Examples
Using values()
var mySet = new Set();
mySet.add("foo");
mySet.add("bar");
mySet.add("baz");
var setIter = mySet.values();
console.log(setIter.next().value); // "foo"
console.log(setIter.next().value); // "bar"
console.log(setIter.next().value); // "baz"
Specifications
| Specification | Status | Comment |
|---|---|---|
| ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'Set.prototype.values' in that specification. |
Standard | Initial definition. |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | 38 | 24 (24) | Not supported | 25 | 7.1 |
| Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | Not supported | 38 | 24.0 (24) | Not supported | Not supported | 8 |