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.

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

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 Annotation 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 Dependency Injection ?
Question no: 21 :– How to implement Dependency Injection ?
Question no: 23 :– Whats the benefit of Dependency Injection ?
Question no: 24 :– Differentiate between ng serve and ng build ?
Question no: 25 :– Explain the prod parameter in ng build ?
Question no: 26 :– Explain ViewChild and ViewChildren ?
Question no: 27 :– Why do we need Template reference variables ?
Question no: 28 :– What is ContentProjection ?
Question no: 29 :– Explain Content projection Slot ?
Question no: 30 :– What is ContentChild and ContentChildren?
Question no: 31 :– ViewChild vs ViewChildren vs ContentChild vs ContentChildren ?
Question no: 32 :– Explain the importance of Component life cycle ?
Question no: 33 :– Explain events and sequence of component life cycle ?
Question no: 34 :– constructor vs ngOnInit() ?
Question no: 35 :– How to make HTTP calls using Angular ?
Question no: 36 :– What is the need of Subscribe function ?
Question no: 37 :– How to handle errors when HTTP fails ?
Question no: 38 :– How to pass data between components ?
Question no: 39 :– What are input , output and event emitters ?
Question no: 40 :– How to pass data during routing ?
Question no: 41 :– Is it a good practice to pass data using services ?
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 ?
Question no: 45 :– What is the fullform 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 unsubscriber in RxJS ?
Question no: 50 :– Explain the concept of operators with sample code?
Question no: 51 :– How to install RxJS ?
Question no: 52 :– Differntiate between promise and RxJS ?
Question no: 53 :– In Angular where have you used RxJS?
Question no: 54 :– Which operators have used from RxJS ?
Question no: 55 :– What is the Push/Reactive vs Pull/Imperative?
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?