Gramin Healthcare interview questions

What are the key differences between CSS Grid and Flexbox, and when would you use one over the other? How do you handle cross-browser compatibility issues in frontend development? Explain the concept of "DOM manipulation" and provide an example of when you've used it in a project. Can you describe the benefits of using a JavaScript framework like React or Angular for frontend development? How do you optimize images for the web to ensure fast loading times while maintaining quality?