Angular interview questions with answers
What you'll learn
- 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 ,Error handling questions and different ways of passing data and in what scenarios to use them.
- Tricky questions of RxJs like observable , observer , operators, promise vs rxjs, importance of subscribe and understanding push/pull/reactive/imperative.
Requirements
- Javascript and Angular basics is needed. If you have not done Angular please check out my Angular step by step course on Udemy.
Description
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?
Who this course is for:
- 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.
Instructor
- 4.5 Instructor Rating
- 8,027 Reviews
- 69,862 Students
- 16 Courses
My name is Shivprasad Koirala, We love teaching and learning, We started the QuestPond website 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.