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 (1 months)
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MDN documentation
Specifications
- ECMAScript® 2027 Language Specification (#sec-iterator.prototype.join), from TC39 (Ecma International).
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