Introduction Playwright has emerged as the dominant end-to-end testing framework, with over 65,000 GitHub stars and adoption by companies like Microsoft, Adobe, and Disney+. Mastering Playwright is now a critical skill for SDETs and automation engineers. This comprehensive guide covers the most frequently asked Playwright interview questions with practical code examples and industry best practices. 1. What is a Promise in TypeScript? A Promise in TypeScript (and JavaScript) represents the eventual completion (or failure) of an asynchronous operation and its resulting value. Key Characteristics: Three states:  pending ,  fulfilled ,  rejected Used to handle async operations like API calls, file I/O, timers Chainable with  .then() ,  .catch() , and  .finally() Playwright Example: typescript // Promise usage in Playwright const buttonClickPromise : Promise < void > = page . click ( '#submit' ) ; buttonClickPromise . then ( ( ) => console ....