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. Shipping in Safari 27.3 (beta). Probes Iterator.join. More: developer.mozilla.org/docs/Web/JavaScript/Referencโฆ tc39.es/ecma262/multipage/control-abstraction-objeโฆ web-platform-dx.github.io/web-features-explorer/feโฆ
typeof Iterator !== "undefined" && ("join" in Iterator || (Iterator.prototype && "join" in Iterator.prototype))typeof Iterator !== "undefined" && ("join" in Iterator || (Iterator.prototype && "join" in Iterator.prototype))