1. What’s the difference between using position: absolute and position: relative on a element in CSS? 2. How would you go about extending a form control or a component in Angular? 3. If you have a web app open in multiple browser tabs, how can you keep the state synchronized between them—so that an update in one tab reflects in all the others? 4. Can you describe the most challenging technical issue you’ve faced and how you went about solving it? 5. What are some best practices you follow when writing unit tests? 6. Code challenge: Given an array like [-1, -1, 2, 3, -1], how would you extract the unique negative values and return their sum?
