Chapter 13: initial samples

Chapter13/core-debug-logs/server.js

@@ -0,0 +1,14 @@
+const express = require("express");
+const app = express();
+
+app.get("/", (req, res) => {
+  res.send("Hello World!");
+});
+
+app.listen(3000, () => {
+  console.log("Server listening on port 3000");
+
+  setInterval(() => {
+    console.log("Server listening...");
+  }, 3000);
+});