Is Javascript's workers the same as threads?

Question

I wanted to know if workers in JS are the same as threads? Is there really parallelism or it's just context switching?

It depends on the implementation (and the number of used cores) — Bergi, Oct 17 '16 at 20:05
Why do you ask? It doesn't really matter (cannot cause problems) since webworkers cannot share memory. — Bergi, Oct 17 '16 at 20:06

score 1 · Answer 1 · answered Oct 17 '16 at 20:44

Web Workers is basically an HTML5 API that runs a named JavaScript file, which contains the code that will run in the worker thread. Web Workers provide a facility for creating new threads that can execute scripts concurrently, thus creating a multi threaded architecture in which the browser can accomplish multiple tasks asynchronously.

Is Javascript's workers the same as threads?

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