Iterator.concat()
The Iterator.concat() JavaScript method returns an iterator that yields values from a sequence of iterators, exhausting each iterator before moving on to the next.
Status
Limited availability
MDN documentation
Specifications
- ECMAScript® 2026 Language Specification (#sec-iterator.concat), from TC39 (Ecma International).
Browser support
- Chrome ❌ See issues.chromium.org/u/1/issues/434977727
- Chrome Android ❌
- Edge ❌
- Firefox 147 Released on 2026-01-13
- Firefox for Android 147 Released on 2026-01-13
- Safari ❌
- Safari on iOS ❌
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