[pjungwir]

Does this scheme give a way to progressively load slices of an array? What I want is something like this:

    ["foo", "bar", "$1"]

And then we can consume this by resolving the Promise for $1 and splatting it into the array (sort of). The Promise might resolve to this:

    ["baz", "gar", "$2"]

And so on.

And then a higher level is just iterating the array, and doesn't have to think about the promise. Like a Python generator or Ruby enumerator. I see that Javascript does have async generators, so I guess you'd be using that.

The "sort of" is that you can stream the array contents without literally splatting. The caller doesn't have to reify the whole array, but they could.

EDIT: To this not-really-a-proposal I propose adding a new spread syntax, ["foo", "bar", "...$1"]. Then your progressive JSON layer can just deal with it. That would be awesome.

[danabramov]

From what I understand of the RSC protocol which the post is based on (might be wrong since I haven't looked closely at this part), this is supported: https://github.com/facebook/react/pull/28847.

>The format is a leading row that indicates which type of stream it is. Then a new row with the same ID is emitted for every chunk. Followed by either an error or close row.