Angular Interview Q & A

About QuestPond: It started 15 years back with the one single goal of creating quality step-by-step IT programming-related lessons.

We saw many lessons online, either they are done too fast or too slow or are too complicated.

The main goal of QuestPond is to create Step by Step lessons on C#, ASP.NET, Design patterns, SQL, and so on. As years moved on I added other step-by-step lessons like Angular, SharePoint, MSBI, Azure and so on.

Angular interview questions with answers

Knowing Angular and still not able to crack interviews , then you are at the right place. :-)

This course focuses on revising most asked interview questions around Angular. Interview is all about expressing your answers in a precise and proper way. You can have tons of knowledge , you must have done tons of coding but cracking interview is a different ball game.

This course is revision course where i have focused on what kind of questions are asked and how to answer them in a elaborate way. Please note this course does not teach Angular , if you want to learn Angular please check my Learn Angular step by step video series having online access validity of 8 months along with download facility.

Below are the questions covered in this course, Happy learning , Happy job hunting

Introduction25 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 - 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 - 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 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?

Angular Interview Questions - Part 7

  • Question no: 56 :- What are interceptors in Angular?
  • Question no: 57 :- How to implement interceptors?
  • Question no: 58 :- GIve some use of Interceptors?
  • Question no: 59 :- Can we provide multi-interceptors?

Angular Interview Questions and Answers PDF

Do Visit to enroll to this 8 months valid courses https://www.questpond.com/most-important-angular-interview-questions-and-answers/cid45


Frequently Asked Questions


What will students learn in your course?
How to answer basic questions around directives, CLI,Component , Modules, Decorator,Annotations, Types of Bindings and SPA. Tackling Advanced interview questions around routing,Lazy Loading, Services & Dependency Injection . To the point answers around ViewChild,ViewChildren,ContentChild , ContentChildren & Content projection. Giving crystal clear answers on constructor vs ngonInit() and Angular component life cycle. Simple lucid answers to Http calls, Routing , Pipes and Error handling questions. Different ways of passing data in Angular and how to answer the question with best practices.
Are there any course requirements or prerequisites?
Javascript and Angular basics is needed. If you have not done Angular please check out my Angular step by step course on QuestPond.
Who are your target students?
Students who are looking to crack Angular Interviews. Students who know Angular but not able to crack Angular interviews. For last minute revision before going to Angular Interviews.