Intro Angular Question & Answers

Part 1
Q1. What is Angular Framework?
Q2. What is the difference between AngularJS and Angular?
Q3. What is TypeScript?
Q4. What are the key components of Angular?
Q5. What are directives?

Part 2
Q1. What are components?
Q2. How is component different from a directive?
Q3. What is a template?
Q4. What is a module?
Q5. What are lifecycle hooks available?

Part 3
Q1. What is a data binding?
Q2. What is angular CLI?
Q3. What is the difference between constructor and ngOnInit?
Q4. What is a service?
Q5. What is dependency injection in Angular?

Part 4
Q1. What is the purpose of async pipe?
Q2. What is the option to choose between inline and external template file?
Q3. What is the purpose of ngFor directive?
Q4. What is the purpose of ngIf directive?
Q5. What happens if you use script tag inside template?

Part 5
Q1. What is interpolation?
Q2. What are template expressions?
Q3. What are pipes?
Q4. What is a parameterised pipe?
Q5. What is the difference between pure and impure pipe?

Part 6
Q1. What is a bootstrapping module?
Q2. What are observables?
Q3. What is HttpClient?
Q4. What are the benefits of HttpClient?
Q5. What is RxJS?

Part 7
Q1. What is an observable?
Q2. What is an observer?
Q3. What is the difference between promise and observable?
Q4. What is multicasting?
Q5. How do you perform error handling in observables?

Part 8
Q1. What are the utility functions provided by RxJS?
Q2. What are observable creation functions?
Q3. What will happen if you do not supply handler for observer?
Q4. What are angular elements?
Q5. What are custom elements?

Part 9
Q1. Do I need to bootstrap custom elements?
Q2. Explain how custom elements works internally?
Q3. What are dynamic components?
Q4. What are the various kinds of directives?
Q5. What is Angular Router?

Part 10
Q1. What is the purpose of base href tag?
Q2. What is router outlet?
Q3. What is the purpose of Wildcard route?
Q4. Do I need a Routing Module always?
Q5. What is Angular Universal?

Part 11
Q1. What are different types of compilation in Angular?
Q2. What is JIT?
Q3. What is AOT?
Q4. Why do we need compilation process in Angular?
Q5. What are the advantages with AOT?

Part 12
Q1. What are the ways to control AOT compilation?
Q2. What are the restrictions of metadata?
Q3. What are the phases of AOT?
Q4. What is the purpose of metadata json files?
Q5. Can I use any javascript feature for expression syntax in AOT?

Part 13
Q1. What are macros?
Q2. What is metadata rewriting?
Q3. What is type narrowing?
Q4. How do you describe various dependencies in angular application?
Q5. What is zone?

Part 14
Q1. What is the purpose of common module?
Q2. What is State function?
Q3. What is Style function?
Q4. How to inject the dynamic script in angular?
Q5. How does Angular handle with XSS or CSRF? How Angular prevents this attack?