Creating and consuming custom iterators
medikoo+mozilla.org at medikoo.com
Wed Aug 28 00:29:56 PDT 2013
In ES5 there is a concept of array-like, which while probably too relaxed is
really friendly for developers, as we can easily create custom array-like
abstractions and make it consumable to any generic functions, methods that
In ES6 there's more advanced (and definitely better) iterators concept,
while I'm pretty excited by it, If read spec correctly I see it's quite
limited and not that usable.
1 There's no way I can create custom iterator abstraction (How can I can
define MyCustomIterator.prototype[@@iterator] method?).
2. There's no straightforward way to consume iterators in generic way, e.g.
I want to write function that works in similar way as Set constructor, and
accepts any iterator implementation. I don't have a means to call
Please correct me if I'm wrong, but if it's the case, I think it's really
important to open that.
Maybe there should be Reflect.getIterator(obj) and
Reflect.defineIterator(obj, getIterator) for that?
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