Frontend Angular Developer Interview Que & Ans

20/11/2025

Hoisting in javascript #9/100

Join this channel to get access to perks:
https://www.youtube.com/channel/UCbckniaFf2vMl5xMGiYzECw/join

19/11/2025

Closure in javascript #8/100

Join this channel to get access to perks:
https://www.youtube.com/channel/UCbckniaFf2vMl5xMGiYzECw/join

18/11/2025

Scope in javascript #7/100

Join this channel to get access to perks:
https://www.youtube.com/channel/UCbckniaFf2vMl5xMGiYzECw/join

19/09/2025

Are you an Angular developer tired of messy code, slow apps, or just feeling overwhelmed? This video is your ultimate cheat sheet! 🚀 Join us as we unlock 10 killer Angular tips that will instantly transform your projects from frustrating to fantastic. Whether you're a complete beginner or looking to refine your skills, these essential practices are designed to make your Angular journey smoother, faster, and more enjoyable.

We'll break down complex concepts into simple, layman's terms with clear examples for each tip. Learn how to:

1. Simplify your app with Standalone Components.
2. Auto-handle data subscriptions using the Async Pipe.
3. Supercharge performance with trackBy in ngFor.
4. Master component behavior using Lifecycle Hooks (ngOnInit, ngOnDestroy).
5. Clean up data handling with essential RxJS Operators (map, filter, switchMap).
6. Accelerate development with powerful Angular CLI Commands.
7. Manage configurations securely using Environment Files.
8. Build robust forms with Reactive Forms for better validation.
9. Boost app load times through Lazy Loading Modules.
10. Optimize rendering efficiency with OnPush Change Detection.

🚀 Angular Made Easy: 10 Simple Tips for Smoother Coding! (Beginner-Friendly)Are you an Angular developer tired of messy code, slow apps, or just feeling ove...

16/09/2025

Q: How do you handle API rate limiting in Angular applications?

👉 Answer:
API rate limiting is typically managed at the backend, but Angular apps should implement safe client-side strategies to avoid unnecessary requests:

Debouncing/Throttling: Use debounceTime() or throttleTime() from RxJS to control the frequency of HTTP calls.

Caching: Store previously fetched results in services or use HttpInterceptor to cache API responses.

Queueing: Implement a request queue with concatMap() to send requests sequentially.

Retry with Delay: Use retryWhen() with exponential backoff to gracefully handle 429 (Too Many Requests).

Global Interceptor: Detect rate-limit errors and automatically schedule retries.

⚡ Real-world Example:

this.http.get('/api/data').pipe(
retryWhen(errors =>
errors.pipe(
scan((acc, error) => {
if (acc >= 3 || error.status !== 429) throw error;
return acc + 1;
}, 0),
delayWhen(() => timer(2000))
)
)
).subscribe();

💡 Tough Insight: An expert Angular dev must balance UX responsiveness and backend protection, ensuring users don’t trigger bans or degraded performance.

🚀

28/07/2025

https://youtu.be/OPLQaSvvWYI?si=aqYsx2NruWM6-8Sc

✅ The Evolution of Angular: From AngularJS to Angular 20 Explained📌 Welcome to this complete breakdown of Angular's evolution — from AngularJS 1.x all the w...

12/07/2025

Callback in Js

19/06/2025

Top 10 Realtime scenario based angular interview questions and answers | angular interview questions

1. Can you explain the concept of lazy loading in angular?
2. What are the change detection strategies in Angular?
3. How would you implement authentication and authorization in an Angular application?
4. what is the purpose of NgModule in Angular and how it helps with organizing the application?
5. Explain the concept of dependency injection and its benefits in angular
6. How to create custom pipe directive and custom component directive in Angular?
7. How to handle data communication between components that dont share a parent-child relationship?
8. How do you handles error in an Angular application?
9. Explain the concepts of Observables and how they can be used to handle asynchronous data?
10. How do you implement internationalization in an Angular application?

​ ​

Top 10 Realtime scenario based angular interview questions and answers | angular interview questions1. Can you explain the concept of lazy loading in angular...