Chapter 10: Working with Workers samples

Chapter10/worker-app/hello-worker.js

@@ -0,0 +1,20 @@
+const {
+  Worker,
+  isMainThread,
+  parentPort,
+  workerData,
+} = require("worker_threads");
+
+if (isMainThread) {
+  // Main thread code
+  const worker = new Worker(__filename, {
+    workerData: "Beth",
+  });
+  worker.on("message", (msg) => {
+    console.log(msg);
+  });
+} else {
+  // Worker code
+  const greeting = `Hello ${workerData}!`;
+  parentPort.postMessage(greeting);
+}