The initial value of the @@iterator property is the same function object as the initial value of the values property.
mySet[Symbol.iterator]
The Set iterator function, which is the values() function by default.
[@@iterator]()
var mySet = new Set();
mySet.add('0');
mySet.add(1);
mySet.add({});
var setIter = mySet[Symbol.iterator]();
console.log(setIter.next().value); // "0"
console.log(setIter.next().value); // 1
console.log(setIter.next().value); // Object
[@@iterator]() with for..of
var mySet = new Set();
mySet.add('0');
mySet.add(1);
mySet.add({});
for (var v of mySet) {
console.log(v);
}
| Specification | Status | Comment |
|---|---|---|
| ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'Set.prototype[@@iterator]' in that specification. | Standard | Initial definition. |
| ECMAScript Latest Draft (ECMA-262) The definition of 'Set.prototype[@@iterator]' in that specification. | Draft |
| Desktop | ||||||
|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
| Basic support | Yes | Yes | 36
|
No | Yes | Yes |
| Mobile | |||||||
|---|---|---|---|---|---|---|---|
| Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | Yes | Yes | Yes | 36
|
Yes | Yes | Yes |
| Server | |
|---|---|
| Node.js | |
| Basic support | 0.12 |
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set/@@iterator