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angular-interview-questions

angular-interview-questions

Angular 框架面试问题集锦

该项目收录了大量 Angular 相关面试题，内容涉及框架核心概念、组件、指令、服务和路由等方面。问题涵盖 Angular 与 AngularJS 的区别、TypeScript 应用、数据绑定机制和生命周期钩子等重要主题。开发者可借此深入了解 Angular 框架，为技术面试做准备或加深对框架的理解。

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Angular Interview Questions & Answers

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Table of Contents

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

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