Parallel programming / Synchronization using JavaScript Web Workers

Question

Are there any synchronization primitives like Barriers, Semaphors, Locks, Monitors, ... available in JavaScript / Web Workers or is there

Answer 1

In short: no there aren't any synchronization primitives in javascript but there is also no need for them since JavaScript is inherently single threaded :). Workers can only access there own scope (no dom manipulation just calculations) and send messages to the main ui thread where the normal js resides. I'm not sure about the maximum count of workers but there sure is a limit, you could try it out in a browser :)

Hope this helps!