Synchronous vs. Asynchronous Programming(medium.com)
medium.com
Synchronous vs. Asynchronous Programming
https://medium.com/@lelouchb/synchronous-vs-asynchronous-programming-1bfef19f032c
3 comments
Javascript is single threaded. Async is not parallelism. As far as I know, the only way to run javascript in parallel is to use child_process.fork() or cluster on node.js, server-side. I do not know of any browsers which implement such.
In browsers you can use webworkers to get parallel execution.
Cool. The author makes no mention of that.