David Herman wrote:
Finally, task.js is just an example of building a control abstraction out of iterators. It happens that the for-of control flow form is imperative and doesn't have a use for a return value. That doesn't mean other control flow operations won't.
+1. The need for an affordance for some use-cases and lack of need for others does not undermine the affordance's value.
PEP-380 is worth a read, IMHO, for anyone who values Python's experience. You have to grok some history and custom jargon.
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