As we have seen in the worker_thread module inside of Node.js, there is a way to communicate with our workers. This is through the postMessage system. If we take a look at the method signature, we will see that it requires a message that can be any JavaScript object, even those with cyclical references. We also see another parameter called transfer. We will go into depth on that in a bit but, as the name suggests, it allows us to actually transfer the data instead of copying the data to the worker. This is a much faster mechanism for transferring data, but there are some caveats when utilizing it that we will discuss later.
Let's take the example that we have been building on and respond to messages sent from ...
