file creation using fs

index.js

+function displayMessage() {
+    return new Promise((resolve, reject) => {
+        setTimeout(() => {
+            resolve("Hello, this is a promise message!");
+        }, 2000);
+    });
+}
+
+displayMessage().then(message => console.log(message)).catch(err => console.error(err));

package.json

+{
+  "name": "nodeassignment1",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC"
+}