Ui Engineer Interview Questions

4,057 ui engineer interview questions shared by candidates

Q: What are Angular lifecycle hooks, and can you explain ngOnInit and ngOnDestroy with examples? Q: How do you implement lazy loading in Angular, and why is it useful? Q: What are Observables in RxJS, and how do you handle error handling in HTTP requests? Q: Can you explain difference between template-driven and reactive forms? Q: How do you optimize Angular application performance?
avatar

Angular UI Developer

Interviewed at Cognizant

3.6
Sep 15, 2025

Q: What are Angular lifecycle hooks, and can you explain ngOnInit and ngOnDestroy with examples? Q: How do you implement lazy loading in Angular, and why is it useful? Q: What are Observables in RxJS, and how do you handle error handling in HTTP requests? Q: Can you explain difference between template-driven and reactive forms? Q: How do you optimize Angular application performance?

Viewing 3331 - 3340 interview questions

Glassdoor has 4,057 interview questions and reports from Ui engineer interviews. Prepare for your interview. Get hired. Love your job.