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Angular Interview Questions Collection 3

  1. What are the new features released in Angular14
  2. Different types of Binding
  3. What is the purpose of router-outlet
  4. Is it possible to use more than one router-outlet? how?
  5. Can you explain how to use HttpClient
  6. How do you read the response
  7. How do you handle the error in functions?
  8. What are Observables?
  9. What is EventEmitter?
  10. 100+ user list response, each user object has a username, age, roles, etc wants to group them with the Roles how do you write a code in typescript?
  11. How do you define parent routes?
  12. Can you explain the life cycle hooks
  13. What are pipes and different types of pipe
  14. If we have more number of data in response of Api how do you load this data in datatable
  15. How do you create dialog box
  16. How you integrate the charts in your project (d3 and amcharts)
  17. What is shared modules
  18. How did you convert string data types to float/integer
  19. Did you use Enum in angular
  20. Different types of FOR loop (traditional for loop, for-in, and for-of)
  21. What is the difference between css, scss and sass?
  22. How do you upgrade from one version another in angular?
  23. How do you update the angular CLI?
  24. How do you null and undefined in HTML
  25. How do you make conditional operators in HTML
  26. Typescript language is converted to which language
  27. How do you make build and deployed
  28. What are package.json and package-lock.json
  29. How do you maintain your code
  30. What is the difference between put and post
  31. Different Types of Pipes?
  32. How to use Multiple Router outlet?
  33. What are Pure Pipes? 
  34. What are Impure Pipes?
  35. What is view encapsulation in Angular?
  36. What is the difference between AOT and JIT? 
  37. What are Eager and Lazy loading? 
  38. How Are Animations Done in Angular?
  39. What is the difference between ngDocheck and Ngonchange lifecycle hook?
  40. How to create custom directives and their uses
  41. What is NGRX? and its uses
  42. List out RXJS operators which you have used and why?
  43. Explain SwtichMap operator uses
  44. What is a Centralized way to handle errors in angular
  45. How to manage large data which we received from REST API?
  46. Have you used Angular material?
  47. different type of directives
  48. custom directives
  49. annotation vs decorator
  50. content projection
  51. viewchild vs output
  52. hostlisteners vs hostbinding 
  53. authorization vs authentification 
  54. resolve guards
  55. ways to make service multi-instance 
  56. are services single instance or multi .. Can we make them multi 
  57. is it required to add services in provider of app module
  58. use of providedIn 
  59. use of onContentCheck and onViewChecked
  60. how you will get to know which route is currently active
  61. ForkJoin
  62. rxjs operators
  63. how TS file are compiled to JS
  64. advantage vs disadvantage of angular
  65. custom attribute
  66. custom structural directive
  67. custom pipe
  68. hot vs cold observable 
  69. multicasting vs unicasting in angular
  70. component 4 parameters
  71. unsubscribe observable 
  72. memory leaks 
  73. server side auth. Vs client auth. 
  74. virtual DOM
  75. SPA ? How can you say Angular APP is one ?
  76. package.json use and what it does?
  77. package.lock.json use and what it does?
  78. linting ?
  79. BEM?
  80. polyfills ? Use and where they are ?
  81. if you delete providedin 'root' what will happen
  82. angular is developed on which design pattern
  83. error interceptor