Recently, I was trying to prepare myself for the upcoming interviews and it was a bit tough to search in google and open link and see same questions each and every time so I thought of sharing what I have found and what is most common questions someone should know if they are preparing for an interview.
Below are the most common interview questions asked in Latest Angular Interviews. These Angular Interview questions and answers help to prepare for Angular developer interviews from junior to senior levels. Moreover, this article covers the basics to advance angular interview questions which you must prepare in 2021.
1. What is the difference between constructor and ngOnInit?
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2. What is the difference between components and directives?
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3. What is the difference between ElementRef, TemplateRef, and viewContainerRef?
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4. What is the difference between ng-content,ng-template, and ng-container?
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5. What is the difference between view-child and content-child?
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6. What is the difference between component view, host view, and embedded view?
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7. What is the difference between debounce time and throttle time?
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8. What is the difference between forEach and map?
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9. What is the difference between ng-content and ng-templateoutlet?
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10. What is the difference between forchild vs forroot?
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11. Why we use pipe operators in RXJS. What is the use of it?
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12. What is the difference between using the Async pipe vs the subscribe function in the Angular application?
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13. What is the difference between promise and observable?
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14. What is the difference between Event Emitter and Subjects?
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15. What is the difference between Observable and Subject?
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16. What is the difference between Activated Route vs Activated route Snapshot?
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17. Discuss different kinds of loading strategies used in your Angular application.
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18. What is Metadata?
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19. What is routerlinkActive use for?
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20. Where we use generics in Angular?
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21. What is the wild card route?
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22. What is the difference between ngIf and hidden?
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23. What is a router outlet?
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24. What is the Router state?
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25. What is an Active route?
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26. Explain different injections in angular.
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27. What is the best way to implement translations in angular?
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28. Explain different routing params in Angular.
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29. What is a virtual scroll in Angular?
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30. What is the difference between route param vs query param?
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31. Explain different guards supported in Angular.
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32. What is the best way too lazy load the component?
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33. What is the way we can display the app version in Angular?
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34. What are the generators in ES6?
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35. Explain the Error mechanism in your application.
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36. What is bootstrapping in angular?
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37. What are Angular elements? why we use it?
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38. What is the difference between the arrow function and regular functions?
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39. What is the difference between Functional vs Object Oriented Programming language? Which one you prefer and why?
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40. What is the difference between JavaScript and TypeScript?
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41. What do you know about Closures?
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42. What is the difference between Template Driven forms and Reactive Forms?
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43. What are different Kinds of Bindings possible in Angular?
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44. Which RXJS operators used for transforming or manipulating data?
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45. Which RXJS Operators you use mostly to handle HTTP services?
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