What's the value of running it asynchronously?

[calvintwr]

if it's still using the main thread despite being made to run asynchronously, isn't it just the same as synchronous execution?

if so should you employ workers?

[bozzltron]

Synchronous execution would block the event loop. Async does not.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/EventLoop

[calvintwr]

Ah right. Thanks for the info.

[calvintwr]

Actually I think async does come back to block the main thread after it has reached its turn. So just for the sake of OCD there’s 2 options:

1. Fork a worker, but only a large enough JSON will benefit, in terms of freeing up the main thread. Otherwise it’s okay to live with a very brief period of blocking. Also when a worker posts the message, the main thread still needs to synchronously serialise. It’s possible to encode in the worker to Unint8array, then in the main thread, use a Coroutines parser.

2. use coroutines for transforming objects in the main thread.