Interview
summary
Two new iterator proposals—iterator sequencing and joint iteration—advance to formal stages, the first at stage 2 and the second at stage 2.7, promising concrete semantics for concatenating and jointly iterating multiple iterators. Notes name tc39 meetings at Aalto and a Helsinki JS meetup with 150 to 200 people, and recounts an implementation and demo history of iterator helpers showing which pieces exist, which tools use them, and which behaviors actually work.
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