Axel Rauschmayer wrote:
There are two different aspects:
1. If you get an iterable, it sometimes matters whether iteration
restarts when you ask the iterable for an iterator.
Rather, if you have an object o and o[Symbol.iterator]() === o then you
have an iterator.
2. Self-iterability is how iterators turn themselves into iterables so
that constructs that work with iterables can be used. It also enables
generators to play two roles: generator methods can implement
`[Symbol.iterator]` and generator functions can implement
iterable-returning functions.
I'm not clear on what 2 means. Generator functions definitely return
generator-iterators when called. A generator function gf does not have a
gf[Symbol.iterator] property, though.
In this particular case, I’m interested in #1. I probably have to come
up with a better term for it.
Yes, "singleton" is the wrong word. Perhaps you want "iterator"? :-P
/be
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