Basic to Advance 200+ Angular Interview Question – 2024

  1. What is Angular Framework – 2024 ?
  2. What is the difference between AngularJS and Angular in Angular 13 – 2024 ?
  3. What is TypeScript in Angular 13 – 2024 ?
  4. Write a pictorial diagram of Angular architecture in Angular 13 – 2024 ?
  5. What are the key components of Angular in Angular 13 – 2024 ?
  6. What are directives in Angular 13 – 2024 ?
  7. What are components in Angular 13 – 2024 ?
  8. What are the differences between Component and Directive in Angular 13 – 2024 ?
  9. What is a template in Angular 13 – 2024 ?
  10. What is a module in Angular 13 – 2024 ?
  11. What are lifecycle hooks available in Angular 13 – 2024 ?
  12. What is a data binding in Angular 13 – 2024 ?
  13. What is metadata in Angular 13 – 2024 ?
  14. What is Angular CLI in Angular 13 – 2024 ?
  15. What is the difference between constructor and ngOnInit in Angular 13 – 2024 ?
  16. What is a service in Angular 13 – 2024
  17. What is dependency injection in Angular 13 – 2024 ?
  18. How is Dependency Hierarchy formed in Angular 13 – 2024 ?
  19. What is the purpose of async pipe in Angular 13 – 2024 ?
  20. What is the option to choose between inline and external template file in Angular 13 – 2024 ?
  21. What is the purpose of *ngFor directive in Angular 13 – 2024 ?
  22. What is the purpose of ngIf directive in Angular 13 – 2024 ?
  23. What happens if you use script tag inside template in Angular 13 – 2024 ?
  24. What is interpolation in Angular 13 – 2024 ?
  25. What are template expressions in Angular 13 – 2024 ?
  26. What are template statements in Angular 13 – 2024 ?
  27. How do you categorize data binding types in Angular 13 – 2024 ?
  28. What are pipes in Angular 13 – 2024 ?
  29. What is a parameterized pipe in Angular 13 – 2024 ?
  30. How do you chain pipes in Angular 13 – 2024 ?
  31. What is a custom pipe in Angular 13 – 2024 ?
  32. Give an example of custom pipe in Angular 13 – 2024 ?
  33. What is the difference between pure and impure pipe in Angular 13 – 2024 ?
  34. What is a bootstrapping module in Angular 13 – 2024 ?
  35. What are observables in Angular 13 – 2024 ?
  36. What is HttpClient and its benefits in Angular 13 – 2024 ?
  37. Explain on how to use HttpClient with an example in Angular 13 – 2024 ?
  38. How can you read full response in Angular 13 – 2024 ?
  39. How do you perform Error handling in Angular 13 – 2024 ?
  40. What is RxJS in Angular 13 – 2024 ?
  41. What is subscribing in Angular 13 – 2024 ?
  42. What is an observable in Angular 13 – 2024 ?
  43. What is an observer in Angular 13 – 2024 ?
  44. What is the difference between promise and observable in Angular 13 – 2024 ?
  45. What is multicasting in Angular 13 – 2024 ?
  46. How do you perform error handling in observables in Angular 13 – 2024 ?
  47. What is the short hand notation for subscribe method in Angular 13 – 2024 ?
  48. What are the utility functions provided by RxJS in Angular 13 – 2024 ?
  49. What are observable creation functions in Angular 13 – 2024 ?
  50. What will happen if you do not supply handler for observer in Angular 13 – 2024 ?
  51. What are angular elements in Angular 13 – 2024 ?
  52. What is the browser support of Angular Elements in Angular 13 – 2024 ?
  53. What are custom elements in Angular 13 – 2024 ?
  54. Do I need to bootstrap custom elements in Angular 13 – 2024 ?
  55. Explain how custom elements works internally in Angular 13 – 2024 ?
  56. How to transfer components to custom elements in Angular 13 – 2024 ?
  57. What are the mapping rules between Angular component and custom element in Angular 13 – 2024 ?
  58. How do you define typings for custom elements in Angular 13 – 2024 ?
  59. What are dynamic components in Angular 13 – 2024 ?
  60. What are the various kinds of directives in Angular 13 – 2024 ?
  61. How do you create directives using CLI in Angular 13 – 2024 ?
  62. Give an example for attribute directives in Angular 13 – 2024 ?
  63. What is Angular Router in Angular 13 – 2024 ?
  64. What is the purpose of base href tag in Angular 13 – 2024 ?
  65. What are the router imports in Angular 13 – 2024 ?
  66. What is router outlet in Angular 13 – 2024 ?
  67. What are router links in Angular 13 – 2024 ?
  68. What are active router links in Angular 13 – 2024 ?
  69. What is router state in Angular 13 – 2024 ?
  70. What are router events in Angular 13 – 2024 ?
  71. What is activated route in Angular 13 – 2024 ?
  72. How do you define routes in Angular 13 – 2024 ?
  73. What is the purpose of Wildcard route in Angular 13 – 2024 ?
  74. Do I need a Routing Module always in Angular 13 – 2024 ?
  75. What is Angular Universal in Angular 13 – 2024 ?
  76. What are different types of compilation in Angular 13 – 2024 ?
  77. What is JIT in Angular 13 – 2024 ?
  78. What is AOT in Angular 13 – 2024 ?
  79. Why do we need compilation process in Angular 13 – 2024 ?
  80. What are the advantages with AOT in Angular 13 – 2024 ?
  81. What are the ways to control AOT compilation in Angular 13 – 2024 ?
  82. What are the restrictions of metadata in Angular 13 – 2024 ?
  83. What are the three phases of AOT in Angular 13 – 2024 ?
  84. Can I use arrow functions in AOT in Angular 13 – 2024 ?
  85. What is the purpose of metadata json files in Angular 13 – 2024 ?
  86. Can I use any javascript feature for expression syntax in AOT in Angular 13 – 2024 ?
  87. What is folding in Angular 13 – 2024 ?
  88. What are macros in Angular 13 – 2024 ?
  89. Give an example of few metadata errors in Angular 13 – 2024 ?
  90. What is metadata rewriting in Angular 13 – 2024 ?
  91. How do you provide configuration inheritance in Angular 13 – 2024 ?
  92. How do you specify angular template compiler options in Angular 13 – 2024 ?
  93. How do you enable binding expression validation in Angular 13 – 2024 ?
  94. What is the purpose of any type cast function in Angular 13 – 2024 ?
  95. What is Non null type assertion operator in Angular 13 – 2024 ?
  96. What is type narrowing in Angular 13 – 2024 ?
  97. How do you describe various dependencies in angular application in Angular 13 – 2024 ?
  98. What is zone in Angular 13 – 2024 ?
  99. What is the purpose of common module in Angular 13 – 2024 ?
  100. What is codelyzer in Angular 13 – 2024 ?
  101. What is angular animation in Angular 13 – 2024 ?
  102. What are the steps to use animation module in Angular 13 – 2024 ?
  103. What is State function in Angular 13 – 2024 ?
  104. What is Style function in Angular 13 – 2024 ?
  105. What is the purpose of animate function in Angular 13 – 2024 ?
  106. What is transition function in Angular 13 – 2024 ?
  107. How to inject the dynamic script in Angular 13 – 2024 ?
  108. What is a service worker and its role in Angular 13 – 2024 ?
  109. What are the design goals of service workers in Angular 13 – 2024 ?
  110. What are the differences between AngularJS and Angular with respect to dependency injection in Angular 13 – 2024 ?
  111. What is Angular Ivy in Angular 13 – 2024 ?
  112. What are the features included in ivy preview in Angular 13 – 2024 ?
  113. Can I use AOT compilation with Ivy in Angular 13 – 2024 ?
  114. What is Angular Language Service in Angular 13 – 2024 ?
  115. How do you install angular language service in the project in Angular 13 – 2024 ?
  116. Is there any editor support for Angular Language Service in Angular 13 – 2024 ?
  117. Explain the features provided by Angular Language Service in Angular 13 – 2024 ?
  118. How do you add web workers in your application in Angular 13 – 2024 ?
  119. What are the limitations with web workers in Angular 13 – 2024 ?
  120. What is Angular CLI Builder in Angular 13 – 2024 ?
  121. What is a builder in Angular 13 – 2024 ?
  122. How do you invoke a builder in Angular 13 – 2024 ?
  123. How do you create app shell in Angular 13 – 2024 ?
  124. What are the case types in Angular 13 – 2024 ?
  125. What are the class decorators in Angular 13 – 2024 ?
  126. What are class field decorators in Angular 13 – 2024 ?
  127. What is declarable in Angular 13 – 2024 ?
  128. What are the restrictions on declarable classes in Angular 13 – 2024 ?
  129. What is a DI token in Angular 13 – 2024 ?
  130. What is Angular DSL in Angular 13 – 2024 ?
  131. What is an rxjs Subject in Angular 13 – 2024 ?
  132. What is Bazel tool in Angular 13 – 2024 ?
  133. What are the advantages of Bazel tool in Angular 13 – 2024 ?
  134. How do you use Bazel with Angular CLI in Angular 13 – 2024 ?
  135. How do you run Bazel directly in Angular 13 – 2024 ?
  136. What is platform in Angular 13 – 2024 ?
  137. What happens if I import the same module twice in Angular 13 – 2024 ?
  138. How do you select an element with in a component template in Angular 13 – 2024 ?
  139. How do you detect route change in Angular 13 – 2024 ?
  140. How do you pass headers for HTTP client in Angular 13 – 2024 ?
  141. What is the purpose of differential loading in CLI in Angular 13 – 2024 ?
  142. Is Angular supports dynamic imports in Angular 13 – 2024 ?
  143. What is lazy loading in Angular 13 – 2024 ?
  144. What are workspace APIs in Angular 13 – 2024 ?
  145. How do you upgrade angular version in Angular 13 – 2024 ?
  146. What is Angular Material in Angular 13 – 2024 ?
  147. How do you upgrade location service of angularjs in Angular 13 – 2024 ?
  148. What is NgUpgrade in Angular 13 – 2024 ?
  149. How do you test Angular application using CLI in Angular 13 – 2024 ?
  150. How to use polyfills in Angular application in Angular 13 – 2024 ?
  151. What are the ways to trigger change detection in Angular 13 – 2024 ?
  152. What are the differences of various versions of Angular in Angular 13 – 2024 ?
  153. What are the security principles in Angular 13 – 2024 ?
  154. What is the reason to deprecate Web Tracing Framework in Angular 13 – 2024 ?
  155. What is the reason to deprecate web worker packages in Angular 13 – 2024 ?
  156. How do you find angular CLI version in Angular 13 – 2024 ?
  157. What is the browser support for Angular in Angular 13 – 2024 ?
  158. What is schematic
  159. What is rule in Schematics in Angular 13 – 2024 ?
  160. What is Schematics CLI in Angular 13 – 2024 ?
  161. What are the best practices for security in Angular 13 – 2024 ?
  162. What is Angular security model for preventing XSS attacks in Angular 13 – 2024 ?
  163. What is the role of template compiler for prevention of XSS attacks in Angular 13 – 2024 ?
  164. What are the various security contexts in Angular 13 – 2024 ?
  165. What is Sanitization in Angular 13 – 2024 ? Is angular supports it in Angular 13 – 2024 ?
  166. What is the purpose of innerHTML in Angular 13 – 2024 ?
  167. What is the difference between interpolated content and innerHTML in Angular 13 – 2024 ?
  168. How do you prevent automatic sanitization in Angular 13 – 2024 ?
  169. Is safe to use direct DOM API methods in terms of security in Angular 13 – 2024 ?
  170. What is DOM sanitizer in Angular 13 – 2024 ?
  171. How do you support server side XSS protection in Angular application in Angular 13 – 2024 ?
  172. Is angular prevents http level vulnerabilities in Angular 13 – 2024 ?
  173. What are Http Interceptors in Angular 13 – 2024 ?
  174. What are the applications of HTTP interceptors in Angular 13 – 2024 ?
  175. Is multiple interceptors supported in Angular 13 – 2024 ?
  176. How can I use interceptor for an entire application in Angular 13 – 2024 ?
  177. How does Angular simplifies Internationalization in Angular 13 – 2024 ?
  178. How do you manually register locale data in Angular 13 – 2024 ?
  179. What are the four phases of template translation in Angular 13 – 2024 ?
  180. What is the purpose of i18n attribute in Angular 13 – 2024 ?
  181. What is the purpose of custom id in Angular 13 – 2024 ?
  182. What happens if the custom id is not unique in Angular 13 – 2024 ?
  183. Can I translate text without creating an element in Angular 13 – 2024 ?
  184. How can I translate attribute in Angular 13 – 2024 ?
  185. List down the pluralization categories in Angular 13 – 2024 ?
  186. What is select ICU expression in Angular 13 – 2024 ?
  187. How do you report missing translations in Angular 13 – 2024 ?
  188. How do you provide build configuration for multiple locales in Angular 13 – 2024 ?
  189. What is an angular library in Angular 13 – 2024 ?
  190. What is AOT compiler in Angular 13 – 2024 ?
  191. How do you select an element in component template in Angular 13 – 2024 ?
  192. What is TestBed in Angular 13 – 2024 ?
  193. What is protractor in Angular 13 – 2024 ?
  194. What is collection in Angular 13 – 2024 ?
  195. How do you create schematics for libraries in Angular 13 – 2024 ?
  196. How do you use jquery in Angular 13 – 2024 ?
  197. What is the reason for No provider for HTTP exception in Angular 13 – 2024 ?
  198. What is router state in Angular 13 – 2024 ?
  199. How can I use SASS in angular project in Angular 13 – 2024 ?
  200. What is the purpose of hidden property in Angular 13 – 2024 ?
  201. What is the difference between ngIf and hidden property in Angular 13 – 2024 ?
  202. What is slice pipe in Angular 13 – 2024 ?
  203. What is index property in ngFor directive in Angular 13 – 2024 ?
  204. What is the purpose of ngFor trackBy in Angular 13 – 2024 ?
  205. What is the purpose of ngSwitch directive in Angular 13 – 2024 ?
  206. Is it possible to do aliasing for inputs and outputs in Angular 13 – 2024 ?
  207. What is safe navigation operator in Angular 13 – 2024 ?
  208. Is any special configuration required for Angular9 in Angular 13 – 2024 ?
  209. What are type safe TestBed API changes in Angular9 in Angular 13 – 2024 ?
  210. Is mandatory to pass static flag for ViewChild in Angular 13 – 2024 ?
  211. What are the list of template expression operators in Angular 13 – 2024 ?
  212. What is the precedence between pipe and ternary operators in Angular 13 – 2024 ?
  213. What is an entry component in Angular 13 – 2024 ?
  214. What is a bootstrapped component in Angular 13 – 2024 ?
  215. How do you manually bootstrap an application in Angular 13 – 2024 ?
  216. Is it necessary for bootstrapped component to be entry component in Angular 13 – 2024 ?
  217. What is a routed entry component in Angular 13 – 2024 ?
  218. Why is not necessary to use entryComponents array every time in Angular 13 – 2024 ?
  219. Do I still need to use entryComponents array in Angular9 in Angular 13 – 2024 ?
  220. Is it all components generated in production build in Angular 13 – 2024 ?
  221. What is Angular compiler in Angular 13 – 2024 ?
  222. What is the role of ngModule metadata in compilation process in Angular 13 – 2024 ?
  223. How does angular finds components, directives and pipes in Angular 13 – 2024 ?
  224. Give few examples for NgModules in Angular 13 – 2024 ?
  225. What are feature modules in Angular 13 – 2024 ?
  226. What are the imported modules in CLI generated feature modules in Angular 13 – 2024 ?
  227. What are the differences between ngmodule and javascript module in Angular 13 – 2024 ?
  228. What are the possible errors with declarations in Angular 13 – 2024 ?
  229. What are the steps to use declaration elements in Angular 13 – 2024 ?
  230. What happens if browserModule used in feature module in Angular 13 – 2024 ?
  231. What are the types of feature modules in Angular 13 – 2024 ?
  232. What is a provider in Angular 13 – 2024 ?
  233. What is the recommendation for provider scope in Angular 13 – 2024 ?
  234. How do you restrict provider scope to a module in Angular 13 – 2024 ?
  235. How do you provide a singleton service in Angular 13 – 2024 ?
  236. What are the different ways to remove duplicate service registration in Angular 13 – 2024 ?
  237. How does forRoot method helpful to avoid duplicate router instances in Angular 13 – 2024 ?
  238. What is a shared module in Angular 13 – 2024 ?
  239. Can I share services using modules in Angular 13 – 2024 ?
  240. How do you get current direction for locales in Angular 13 – 2024 ? in Angular 13 – 2024 ?
  241. What is ngcc in Angular 13 – 2024 ?
  242. What classes should not be added to declarations in Angular 13 – 2024 ?
  243. Wat is ngzone in Angular 13 – 2024 ?
  244. What is NoopZone in Angular 13 – 2024 ?
  245. How do you create displayBlock components in Angular 13 – 2024 ?
  246. What are the possible data change scenarios for change detection in Angular 13 – 2024 ?
  247. What is a zone context in Angular 13 – 2024 ?
  248. What are the lifecycle hooks of a zone in Angular 13 – 2024 ?
  249. Which are the methods of NgZone used to control change detection in Angular 13 – 2024 ?
  250. How do you change the settings of zonejs in Angular 13 – 2024 ?
  251. How do you trigger an animation in Angular 13 – 2024 ?
  252. How do you configure injectors with providers at different levels in Angular 13 – 2024 ?
  253. Is it mandatory to use injectable on every service class in Angular 13 – 2024 ?
  254. What is an optional dependency in Angular 13 – 2024 ?
  255. What are the types of injector hierarchies in Angular 13 – 2024 ?
  256. What are reactive forms in Angular 13 – 2024 ?
  257. What are dynamic forms in Angular 13 – 2024 ?
  258. What are template driven forms in Angular 13 – 2024 ?
  259. What are the differences between reactive forms and template driven forms in Angular 13 – 2024 ?
  260. What are the different ways to group form controls in Angular 13 – 2024 ?
  261. How do you update specific properties of a form model in Angular 13 – 2024 ?
  262. What is the purpose of FormBuilder in Angular 13 – 2024 ?
  263. How do you verify the model changes in forms in Angular 13 – 2024 ?
  264. What are the state CSS classes provided by ngModel in Angular 13 – 2024 ?
  265. How do you reset the form in Angular 13 – 2024 ?
  266. What are the types of validator functions in Angular 13 – 2024 ?
  267. Can you give an example of built-in validators in Angular 13 – 2024 ?
  268. How do you optimize the performance of async validators in Angular 13 – 2024 ?
  269. How to set ngFor and ngIf on the same element in Angular 13 – 2024 ?
  270. What is host property in css in Angular 13 – 2024 ?
  271. How do you get the current route in Angular 13 – 2024 ?
  272. What is Component Test Harnesses in Angular 13 – 2024 ?
  273. What is the benefit of Automatic Inlining of Fonts in Angular 13 – 2024 ?
  274. What is content projection in Angular 13 – 2024 ?
  275. What is ng-content and its purpose in Angular 13 – 2024 ?

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