Add await* as alias of await.all? (Also matches yield*)

[Jack-Works]

No description provided.

[ljharb]

No, for a few reasons:

• it doesn’t match yield* in semantics, whatsoever
• a big part of the reason await* was removed from async/await is that it only handled “all”
• the * conveys no meaning here, and is confusing (it’s confusing in yield* too, but that ship has sailed)

[Jack-Works]

it doesn’t match yield* in semantics, whatsoever

yield* expr = yield all things in the expr

await * expr = await all things in the expr

I think there is symmetry.

[ExE-Boss]

Well, yield* at least has some symmetry with function*, but async function* and await.all don’t actually have any overlap, as Promise statics don’t accept async iterables: tc39/ecma262#1909.

You could define await* foo as being await AsyncIterator.prototype.toArray.call(foo[Symbol.asyncIterator]()), which would match yield* semantics, but that would probably be confusing, and you can always use the toArray iterator helper method.