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Frontend Software Engineer Interview Questions

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8,908 frontend software engineer interview questions shared by candidates

1.Explain Merge Sort and code on board and tell approach of Quick Sort 2.Explain working of HashMap in depth 3.Draw a Database table for Song app, They also asked to perform Normalization(1NF, 2NF….BCNF) on tables and then they asked to write queries. 4.Tree traversals and Boundary Traversal 5.Difference B/W Segmentation and Paging, Page Fault 6. What is DNS LookUp, Load Balancer and How Server works 7. Polymorphism and types and there difference 8.Questions on Project and there implementation 9.DFS and BFS
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Frontend Developer

Interviewed at ThoughtFocus

3.4★
Dec 17, 2020

1.Explain Merge Sort and code on board and tell approach of Quick Sort 2.Explain working of HashMap in depth 3.Draw a Database table for Song app, They also asked to perform Normalization(1NF, 2NF….BCNF) on tables and then they asked to write queries. 4.Tree traversals and Boundary Traversal 5.Difference B/W Segmentation and Paging, Page Fault 6. What is DNS LookUp, Load Balancer and How Server works 7. Polymorphism and types and there difference 8.Questions on Project and there implementation 9.DFS and BFS

Technical Round 1: They analyzed understanding on frontend technical skills ie. angular, typescript, html, css. Some Questions: 1. Create closure for displaying count 2. call, bind and apply 3. how do we integrate service in angular, how to optimize memory while consuming API(i.e. cancelling an observable) 4. types of forms in angular 5. @ViewChild verses @ContentChild 6. content projection 7. DOM Sanitization 8. Code Optimization in angular 9. Change detection, onPush etc
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Frontend Developer - Angular

Interviewed at Altimetrik

3.8★
Jan 17, 2025

Technical Round 1: They analyzed understanding on frontend technical skills ie. angular, typescript, html, css. Some Questions: 1. Create closure for displaying count 2. call, bind and apply 3. how do we integrate service in angular, how to optimize memory while consuming API(i.e. cancelling an observable) 4. types of forms in angular 5. @ViewChild verses @ContentChild 6. content projection 7. DOM Sanitization 8. Code Optimization in angular 9. Change detection, onPush etc

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