Question library
Questions from real interviews. Drill any of them by voice in a couple of minutes, with an interviewer, a score and feedback.
You join a large TypeScript project with lots of any and strict turned off. How would you go about tightening the typing, and which type-level decisions do you consider key for maintainability?SeniorYou've been asked to upgrade a large service from Java 11 and Spring Boot 2 to Java 21 and Spring Boot 3. How would you plan and carry out the migration, and what risks do you expect?Senior