Iterator join()
Limited availability
The join() method of an Iterator object returns a string concatenation of all the iterator's items, separated by commas or a given separator string. It's similar to the join() method of arrays.
Browser support
- Chrome 153 Released on 2026-09-08
- Chrome Android 153 Released on 2026-09-08
- Edge 153 Released on 2026-09-11
- Firefox 154 Released on 2026-08-18
- Firefox for Android 154 Released on 2026-08-18
- Safari Not supported
- Safari on iOS Not supported
Baseline availability blocked since September 2026 by Safari (0 months)
MDN documentation
No MDN documentation found. You can search for the feature on MDN. If you believe that MDN has no documentation about this feature, you can open an issue on MDN's GitHub repository.Specifications
- Proposal Iterator Join (#sec-iterator.prototype.join), from TC39 (Ecma International).
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