Playwright JavaScript Interview Playbook

What is inside

1. Part 1. Playwright Basics and Architecture4 questions: why teams move to Playwright, Browser, Context and Page, browsers and device emulation, first-hour project setup
2. Part 2. JavaScript for Testers5 questions on the JavaScript you actually use in tests: async and await, promises and the patterns interviewers probe
3. Part 3. Locators5 questions: role and label locators, filtering, chaining and why CSS and XPath come last
4. Part 4. Auto-waiting and Assertions5 questions: actionability checks, web-first assertions and fixing timing flakiness
5. Part 5. Test Runner, Config and Projects4 questions: playwright.config, projects, retries and reporters
6. Part 6. Fixtures and Hooks3 questions: built-in and custom fixtures versus beforeEach
7. Part 7. Page Object Model and Framework Design3 questions: page objects with locators, folder structure, keeping tests readable
8. Part 8. Network Mocking and API Testing5 questions: page.route, waiting for responses, the request fixture and API plus UI tests
9. Part 9. Authentication and Sessions3 questions: storageState, logging in once, multiple roles
10. Part 10. Debugging and Flaky Tests4 questions: Trace Viewer, UI mode, finding and fixing flaky tests
11. Part 11. Parallel Runs, CI/CD and Docker4 questions: workers, sharding, GitHub Actions and the Playwright Docker image
12. Part 12. Playwright with AI3 questions: Playwright MCP, AI-assisted test writing and where it still needs a tester
13. In every answerShort points to say out loud, a small real code example, the one line to remember and the common mistake to avoid.
14. Try it yourselfA hands-on task at the end of every part.

PDF, 47 pages. Works on phone and laptop.