Angular Interview Questions & Answers

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No.	Questions
1	What is Angular Framework?
2	What is the difference between AngularJS and Angular?
3	What is TypeScript?
4	Write a pictorial diagram of Angular architecture?
5	What are the key components of Angular?
6	What are directives?
7	What are components?
8	What are the differences between Component and Directive?
9	What is a template?
10	What is a module?
11	What are lifecycle hooks available?
12	What is a data binding?
13	What is metadata?
14	What is Angular CLI?
15	What is the difference between constructor and ngOnInit?
16	What is a service
17	What is dependency injection in Angular?
18	How is Dependency Hierarchy formed?
19	What is the purpose of async pipe?
20	What is the option to choose between inline and external template file?
21	What is the purpose of *ngFor directive?
22	What is the purpose of ngIf directive?
23	What happens if you use script tag inside template?
24	What is interpolation?
25	What are template expressions?
26	What are template statements?
27	How do you categorize data binding types?
28	What are pipes?
29	What is a parameterized pipe?
30	How do you chain pipes?
31	What is a custom pipe?
32	Give an example of custom pipe?
33	What is the difference between pure and impure pipe?
34	What is a bootstrapping module?
35	What are observables?
36	What is HttpClient and its benefits?
37	Explain on how to use HttpClient with an example?
38	How can you read full response?
39	How do you perform Error handling?
40	What is RxJS?
41	What is subscribing?
42	What is an observable?
43	What is an observer?
44	What is the difference between promise and observable?
45	What is multicasting?
46	How do you perform error handling in observables?
47	What is the shorthand notation for subscribe method?
48	What are the utility functions provided by RxJS?
49	What are observable creation functions?
50	What will happen if you do not supply handler for the observer?
51	What are Angular elements?
52	What is the browser support of Angular Elements?
53	What are custom elements?
54	Do I need to bootstrap custom elements?
55	Explain how custom elements works internally?
56	How to transfer components to custom elements?
57	What are the mapping rules between Angular component and custom element?
58	How do you define typings for custom elements?
59	What are dynamic components?
60	What are the various kinds of directives?
61	How do you create directives using CLI?
62	Give an example for attribute directives?
63	What is Angular Router?
64	What is the purpose of base href tag?
65	What are the router imports?
66	What is router outlet?
67	What are router links?
68	What are active router links?
69	What is router state?
70	What are router events?
71	What is activated route?
72	How do you define routes?
73	What is the purpose of Wildcard route?
74	Do I need a Routing Module always?
75	What is Angular Universal?
76	What are different types of compilation in Angular?
77	What is JIT?
78	What is AOT?
79	Why do we need compilation process?
80	What are the advantages with AOT?
81	What are the ways to control AOT compilation?
82	What are the restrictions of metadata?
83	What are the three phases of AOT?
84	Can I use arrow functions in AOT?
85	What is the purpose of metadata json files?
86	Can I use any javascript feature for expression syntax in AOT?
87	What is folding?
88	What are macros?
89	Give an example of few metadata errors?
90	What is metadata rewriting?
91	How do you provide configuration inheritance?
92	How do you specify angular template compiler options?
93	How do you enable binding expression validation?
94	What is the purpose of any type cast function?
95	What is Non null type assertion operator?
96	What is type narrowing?
97	How do you describe various dependencies in angular application?
98	What is zone?
99	What is the purpose of common module?
100	What is codelyzer?
101	What is angular animation?
102	What are the steps to use animation module?
103	What is State function?
104	What is Style function?
105	What is the purpose of animate function?
106	What is transition function?
107	How to inject the dynamic script in angular?
108	What is a service worker and its role in Angular?
109	What are the design goals of service workers?
110	What are the differences between AngularJS and Angular with respect to dependency injection?
111	What is Angular Ivy?
112	What are the features included in ivy preview?
113	Can I use AOT compilation with Ivy?
114	What is Angular Language Service?
115	How do you install angular language service in the project?
116	Is there any editor support for Angular Language Service?
117	Explain the features provided by Angular Language Service?
118	How do you add web workers in your application?
119	What are the limitations with web workers?
120	What is Angular CLI Builder?
121	What is a builder?
122	How do you invoke a builder?
123	How do you create app shell in Angular?
124	What are the case types in Angular?
125	What are the class decorators in Angular?
126	What are class field decorators?
127	What is declarable in Angular?
128	What are the restrictions on declarable classes?
129	What is a DI token?
130	What is Angular DSL?
131	What is an rxjs Subject?
132	What is Bazel tool?
133	What are the advantages of Bazel tool?
134	How do you use Bazel with Angular CLI?
135	How do you run Bazel directly?
136	What is platform in Angular?
137	What happens if I import the same module twice?
138	How do you select an element with in a component template?
139	How do you detect route change in Angular?
140	How do you pass headers for HTTP client?
141	What is the purpose of differential loading in CLI?
142	Is Angular supports dynamic imports?
143	What is lazy loading?
144	What are workspace APIs?
145	How do you upgrade angular version?
146	What is Angular Material?
147	How do you upgrade location service of angularjs?
148	What is NgUpgrade?
149	How do you test Angular application using CLI?
150	How to use polyfills in Angular application?
151	What are the ways to trigger change detection in Angular?
152	What are the differences of various versions of Angular?
153	What are the security principles in angular?
154	What is the reason to deprecate Web Tracing Framework?
155	What is the reason to deprecate web worker packages?
156	How do you find angular CLI version?
157	What is the browser support for Angular?
158	What is schematic
159	What is rule in Schematics?
160	[What is