Concurrent Programming in JavaScript

Mar 18, 2025

“Parallelism is about physically doing two or more things at the same time. Concurrency is about undefined, out of order, execution.” - William Kennedy

Javascript typically isn’t the first language that comes to mind when you think of concurrent & parallel programming - i’d imagine c++, go, and elixir are higher up on the list.

Despite preconceived notions (i myself didn’t think that javascript could be parallel, especially on the client) javascript is definitely concurrent - and even parallel at times.