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1.
What is a Progressive Web App (PWA)?
Answer:
PWA Fundamentals
- 2.
How do PWAs differ from traditional web applications?
Answer: - 3.
Can you list the core pillars of a PWA?
Answer: - 4.
What are the advantages of developing a PWA over a native app?
Answer: - 5.
What is the role of the service worker in a PWA?
Answer: - 6.
How do you make a web app installable on a user’s home screen?
Answer: - 7.
What is a manifest file and what is its significance in PWAs?
Answer: - 8.
What is the purpose of the ‘Add to Home Screen’ feature?
Answer: - 9.
How can you detect if your web app has been added to the user’s home screen?
Answer: - 10.
Explain how PWAs achieve offline functionality.
Answer: - 11.
What are the security requirements for a PWA?
Answer: - 12.
Can you delineate between App Shell and content in a PWA context?
Answer: - 13.
How does a PWA function on a low-bandwidth or offline network?
Answer: - 14.
What are push notifications in the context of PWAs?
Answer: - 15.
Can you explain the concept of background sync in PWAs?
Answer: - 16.
What is a service worker lifecycle?
Answer: - 17.
How do you handle compatibility issues across different browsers for PWAs?
Answer: - 18.
How would you test a PWA?
Answer: - 19.
What is the role of HTTPS in PWAs?
Answer: - 20.
What are the limitations of PWAs?
Answer:
Service Workers
- 21.
What is the role of the ‘install’ event in a service worker?
Answer: - 22.
How do you cache assets using service workers?
Answer: - 23.
Can you explain how service worker updates are managed?
Answer: - 24.
What different caching strategies can be implemented with service workers?
Answer: - 25.
Describe how you would use a service worker to intercept network requests.
Answer: - 26.
What is a FetchEvent in the context of service workers?
Answer: - 27.
How do you handle errors in a service worker script?
Answer: - 28.
Discuss how service workers can be debugged.
Answer: - 29.
What is the ‘activate’ event in a service worker and what is it used for?
Answer: - 30.
Explain the concept of “cache busting” and why it’s important for PWAs.
Answer:
Web App Manifest
- 31.
What key properties does the Web App Manifest contain?
Answer: - 32.
How do you define the start URL in a manifest file?
Answer: - 33.
What are the guidelines for designing app icons for a PWA?
Answer: - 34.
How does the web app manifest affect the appearance of the PWA on a device?
Answer: - 35.
Can you dynamically generate a web app manifest or must it be static?
Answer:
User Engagement & Experience
- 36.
How do push notifications enhance user engagement in a PWA?
Answer: - 37.
What strategies can you use to prompt the user to install your PWA?
Answer: - 38.
How would you customize the prompt that asks users to add your PWA to their home screen?
Answer: - 39.
Can you tailor the UX of a PWA depending on whether it’s run in a browser or as an installed app?
Answer: - 40.
What is the significance of having a responsive design in PWAs?
Answer:
Performance & Optimization
- 41.
What tools can be used for performance auditing of a PWA?
Answer: - 42.
How do you optimize the loading time of your PWA?
Answer: - 43.
Discuss the impact of JavaScript bundling and minification on PWAs.
Answer: - 44.
What role does image optimization play in PWAs?
Answer: - 45.
How do you track and improve the First Contentful Paint (FCP) in PWAs?
Answer: - 46.
What is Time to Interactive (TTI), and how do you optimize it for PWAs?
Answer: - 47.
How do you implement lazy loading in a PWA?
Answer: - 48.
Why is it important to prioritize above-the-fold content for PWAs?
Answer: - 49.
Discuss how to prevent janky animations and achieve smooth performance in a PWA.
Answer: - 50.
What strategies can be employed to minimize main-thread work in a PWA?
Answer:
PWA Architecture and Application Structure
- 51.
What architectural patterns are commonly used in PWAs?
Answer: - 52.
How should you structure your files and directories for a PWA?
Answer: - 53.
Can you explain the Model-View-ViewModel (MVVM) architecture in the context of PWAs?
Answer: - 54.
How do you manage state in a PWA?
Answer: - 55.
Discuss the role of front-end frameworks and libraries in PWA development.
Answer: - 56.
How does a PWA handle dynamic content and user personalization?
Answer:
Offline Capabilities
- 57.
How do you design for offline-first in a PWA?
Answer: - 58.
What is the role of IndexedDB in PWAs?
Answer: - 59.
How can you synchronize local changes with a server once online?
Answer: - 60.
Can you explain how to manage user-generated content in offline mode?
Answer: - 61.
What are the considerations for storing and retrieving data locally in a PWA?
Answer:
Push Notifications
- 62.
How do you register a service worker for push notifications?
Answer: - 63.
What is the Web Push Protocol and how is it used in PWAs?
Answer: - 64.
Can you explain the notification click event handling in a PWA?
Answer: - 65.
What are the best practices for sending push notifications to users?
Answer: - 66.
How do you customize the notification appearance and behavior on different platforms?
Answer:
Scalability and Maintainability
- 67.
How do you ensure that a PWA remains scalable as features grow?
Answer: - 68.
Discuss the use of module bundlers in PWAs for better maintainability.
Answer: - 69.
What considerations must be taken into account for version control in PWAs?
Answer: - 70.
How do you handle data migrations in PWAs?
Answer: - 71.
Can you implement feature toggles in PWAs?
Answer:
PWA and E-commerce
- 72.
Why are PWAs well-suited for e-commerce platforms?
Answer: - 73.
How can a PWA improve conversion rates for an e-commerce site?
Answer: - 74.
What are the unique challenges of developing PWAs for e-commerce?
Answer: - 75.
How would you handle checkout and payment processing in an e-commerce PWA?
Answer: - 76.
Can you discuss strategies for integrating analytics in an e-commerce PWA?
Answer:
APIs and Integration
- 77.
What are the common APIs used in developing a PWA?
Answer: - 78.
How do PWAs integrate with native device features?
Answer: - 79.
Discuss how a PWA can access a user’s camera or GPS.
Answer: - 80.
How do you handle cross-origin requests in a PWA?
Answer: - 81.
How can third-party services be integrated into a PWA?
Answer:
Advanced PWA Topics
- 82.
What are Progressive Enhancement and Graceful Degradation in the context of PWAs?
Answer: - 83.
How do you implement a periodic background sync in PWA?
Answer: - 84.
Discuss the concept of Credential Management API in PWAs.
Answer: - 85.
What is the Payment Request API and how does it simplify transactions in a PWA?
Answer: - 86.
How can a PWA be part of the Internet of Things (IoT)?
Answer:
Platform-Specific Considerations
- 87.
How do you optimize a PWA for iOS devices?
Answer: - 88.
What are the current limitations for PWAs on the Apple App Store?
Answer: - 89.
Discuss the differences between optimizing PWAs for Android vs. iOS.
Answer: - 90.
How does the choice of web browser affect the behavior of a PWA?
Answer:
Testing & Debugging PWAs
- 91.
What strategies do you use for testing the service workers?
Answer: - 92.
How do you simulate offline testing conditions for your PWA?
Answer: - 93.
What are the main aspects to test before deploying a PWA?
Answer: - 94.
How can you debug a PWA on a mobile device?
Answer: - 95.
What are common issues encountered when testing push notifications and how do you address them?
Answer:
PWA Case Studies and Real-life Applications
- 96.
Can you provide examples of successful PWAs?
Answer: - 97.
Discuss how PWAs have impacted mobile traffic for major websites.
Answer: - 98.
How has the user engagement changed pre and post PWA implementation for a notable company?
Answer: - 99.
What challenges did developers face when transitioning a traditional web app to a PWA?
Answer:
The Future of PWAs
- 100.
What future advancements do you anticipate in the field of PWAs?
Answer:
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