diff --git a/docs/src/library-js.md b/docs/src/library-js.md
index 3cebaadcb2..1b0ab65842 100644
--- a/docs/src/library-js.md
+++ b/docs/src/library-js.md
@@ -24,6 +24,7 @@ The following is an example of using the Playwright Library directly to launch C
 
 ```js tab=js-ts
 import playwright, { devices } from 'playwright';
+import assert from 'node:assert';
 
 (async () => {
   // Setup
@@ -35,7 +36,7 @@ import playwright, { devices } from 'playwright';
   await context.route('**.jpg', route => route.abort());
   await page.goto('https://example.com/');
 
-  assert(await page.title() === 'Example'); // 👎 not a Web First assertion
+  assert(await page.title() === 'Example Domain'); // 👎 not a Web First assertion
 
   // Teardown
   await context.close();
@@ -44,19 +45,20 @@ import playwright, { devices } from 'playwright';
 ```
 
 ```js tab=js-js
+const assert = require('node:assert');
 const playwright = require('playwright');
 
 (async () => {
   // Setup
   const browser = await playwright.chromium.launch();
-  const context = await browser.newContext(devices['iPhone 11']);
+  const context = await browser.newContext(playwright.devices['iPhone 11']);
   const page = await context.newPage();
 
   // The actual interesting bit
   await context.route('**.jpg', route => route.abort());
   await page.goto('https://example.com/');
 
-  assert(await page.title() === 'Example'); // 👎 not a Web First assertion
+  assert(await page.title() === 'Example Domain'); // 👎 not a Web First assertion
 
   // Teardown
   await context.close();