Most Important Angular Interview Questions and Answers

44 Interview Questions with Answers series | Online Access with Download Facility

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Most Important Angular Interview Questions and Answers

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44 Interview Questions with Answers series

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25 basics interview Q & A on Angular - Part 1

  • Question no: 1 :- Whats the use of Angular ?

  • Question no: 2 :- What are directives in Angular ?

  • Question no: 3 :- Explain the different types of Angular directives ?

  • Question no: 4 :- Explain the importance of NPM and Node_Modules folder ?

  • Question no: 5 :- Explain the importance of Package.json file in Angular ?

  • Question no: 6 :- What is typescript and why do we need it ?

  • Question no: 7 :- Explain importance of Angular CLI ?

  • Question no: 8 :- Explain the importance of Component and Modules ?

  • Question no: 9 :- What is a decorator in Angular ?

  • Question no: 10 :- What are Annotationa or MetaData ?

  • Question no: 11 :- What is a template ?

  • Question no: 12 :- Explain the four types of Data bindings in Angular ?

  • Question no: 13 :- Explain architecture of Angular ?

  • Question no: 14 :- What is SPA in Angular ?

  • Question no: 15 :- How to implement SPA in Angular ?

  • Question no: 16 :- How to implement routing in Angular ?

  • Question no: 17 :- Explain Lazy Loading ?

  • Question no: 18 :- How to implement Lazy Loading in Angular ?

  • Question no: 19 :- Define Services ?

  • Question no: 20 :- What is Depedency Injection ?

  • Question no: 21 :- How to implement Depedency Injection ?

  • Question no: 23 :- Whats the benefit of Depedency Injection ?

  • Question no: 24 :- Differentiate between ng serve and ng build ?

  • Question no: 25 :- Explain the --prod parameter in ng build ?

Angular Interview Questions and Answers - Part 2

  • Questions No:- 26 :- Explain ViewChild and ViewChildren?

  • Questions No:- 27 :- Why do we need Template reference variables?

  • Questions No:- 28 :- What is ContentProjection?

  • Questions No:- 29 :- Explain Content projection Slot?

  • Questions No:- 30 :- What is ContentChild and ContentChildren?

  • Questions No:- 31 :- ViewChild vs ViewChildren vs ContentChild vs ContentrChildren?

Angular interview questions - Part 3

  • Questions No:- 32 :- Explain the importance of Component life cycle ?

  • Questions No:- 33 :- Explain events and sequence of component life cycle ?

  • Questions No:- 34 :- Constructor vs ngOnInit() ?

Angular Interview Questions and Answers - Part 4

  • Questions No:- 35 :- How to make HTTP calls using Angular ?

  • Questions No:- 36 :- What is the need of Subscribe function ?

  • Questions No:- 37 :- How to handle errors when HTTP fails ?

  • Questions No:- 38 :- How to pass data between components ?

  • Questions No:- 39 :- Explain importance of input, output & event emitters ?

  • Questions No:- 40 :- How to pass during routing ?

  • Questions No:- 41 :- Is it a good practice to pass data using services ?

Angular Interview Questions and Answers - Part 5

  • Question No: 42:- What is the need of Angular Pipes?

  • Question No: 43:- Can you name some built-in Angular Pipes?

  • Question No: 44:- How to create Custom pipes in Angular?

Angular Interview Questions and Answers - Part 6

  • Question no: 45 :- Whats the full form of RxJs?

  • Question no: 46 :- What is the purpose of RxJs?

  • Question no: 47 :- What are observables and observers?

  • Question no: 48 :- Explain the use of Subscribe with sample code.

  • Question no: 49 :- How to unsbscribe in RxJs?

  • Question no: 50 :- Explain concept of operators with sample code.

  • Question no: 51 :- How to install RxJs?

  • Question no: 52 :- Differentiate between promise and RxJs?

  • Question no: 53 :- In Angular where have you used RxJs?

  • Question no: 54 :- Which operators have you used from RxJs?

  • Question no: 55 :- What is Push/reactive vs Pull/Imperative?

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