TypeScript for QA Automation

Lesson 01 — Setup environment for TypeScript QA workInstall the toolchain QA automation engineers use daily, scaffold a tiny TypeScript project, and run `.ts` files without compiling manually each time.

Lesson 02 — TypeScript basics for QA dataAttach explicit types to the values you move through tests: credentials, IDs, flags. TypeScript catches mistakes before runtime.

Lesson 03 — Functions with typesDeclare argument and return types for login checks, generators for synthetic users, and small predicates Playwright specs call often.

Lesson 04 — Interfaces shape automation contractsInterfaces describe **allowed keys** on objects — fixtures, REST bodies, POM boundaries — without caring about runtime class mechanics yet.

Lesson 05 — Advanced types QA relies onPick the right tool when modeling statuses, logging helpers, uncertain JSON, or impossible branches TypeScript must narrow away.

Lesson 06 — Arrays and loops with disciplineCombine typed arrays with `for...of`, classic indexes when needed, and immutability mindset for shared test data.

Lesson 07 — Async / await for testersAutomation is inherently asynchronous — browsers and networks resolve later. Learn how TypeScript surfaces `Promise` types.

Lesson 08 — Playwright with TypeScriptBootstrap `@playwright/test`, install browsers locally, and assert on a deterministic public page.

Lesson 09 — Page Object Model with strong typingWrap Playwright `Page` interactions inside cohesive classes (`LoginPage`, `DashboardPage`) so specs read like scenarios.