rethinkdbdash

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See #370, this patch adds a cursor.asyncIterator method which returns an async iterator:

const feed = yield r.db().table().changes().run();

const iterator = feed.asyncIterator();

for await (var change of iterator) {
  console.log(change);
}
console.log('Done!');

I added iterall as a dependency since I need to use it in the tests anyway, but if you want me to I can move it to the devDependencies and inline the $$asyncIterator polyfill snippet. (it's like 3 lines)

Wercker failed even though all tests passed 🤔

I came here to do this and was pleasantly surprised to find a PR already open. Now that async iterators are supported natively in node, this would definitely be nice to have, ideally without polyfill. Would it be possible to use the [Symbol.asyncIterator] protocol so that it's possible to pass the cursor itself directly into the for-await-of loop?

Would it be possible to use the [Symbol.asyncIterator] protocol so that it's possible to pass the cursor itself directly into the for-await-of loop?

Already possible!

@neumino ?

merged in https://github.com/RebirthDB/rebirthdb-js