Iterator methods
Newly available since 2025-03-31
The Iterator object is an abstract base for objects that implement the iterator protocol. It provides methods common to built-in iterators, such as filter(), find(), map(), and reduce(). You can also use the static method Iterator.from() to convert an existing iterable into an Iterator.
Learning resources on MDN
Browser support
- Chrome 122 Released on 2024-02-20
- Chrome Android 122 Released on 2024-02-20
- Edge 122 Released on 2024-02-23
- Firefox 131 Released on 2024-10-01
- Firefox for Android 131 Released on 2024-10-01
- Safari 18.4 Released on 2025-03-31
- Safari on iOS 18.4 Released on 2025-03-31
Usage (according to Chrome Platform Status)
~1.009% of page loads. More data at chromestatus.
Specifications
- Iterator Helpers, from TC39 (Ecma International).
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