Frontend Interview Questions For 5 Years Of Experience

 

To be a successful frontend developer, you need a combination of technical skills, problem-solving abilities, and a good understanding of user experience design. Here are some essential skills for frontend development:

1. Proficient in HTML: Understanding the structure, semantics, and best practices of HTML is essential for creating well-structured and accessible web pages.
2. Strong CSS Skills: CSS is used for styling and layout. You should be proficient in CSS fundamentals, including selectors, box model, positioning, responsive design, and CSS frameworks.
3. JavaScript and Frameworks: JavaScript is a core language for frontend development. Familiarity with JavaScript and its libraries/frameworks like React, Angular, or Vue.js is crucial for building interactive and dynamic web applications.
4. Responsive Design: Ability to create responsive layouts that adapt to different screen sizes and devices is essential for delivering a consistent and user-friendly experience across various platforms.

Front End Developer Interview Questions for 5 Years Of Experience

HTML Interview Questions for 5 Years Of Experience

1. What is the use of aria hidden attribute ?
2. What are some important points related to accessibility ?
3. For accessibility which screen reader is used for which browser ?
4. What are web workers ?
5. Which html elements were used before HTML5 for embedding video into the website ?
6. What is an image map ?
7. What does semantic HTML mean ?
8. What are the new features of HTML5 ?
9. Explain use of meta tags in HTML ?
10. What is view state and session state ?
11. What should be preferred for storing tokens localstorage or session storage or cookies and why ?



 CSS Interview Questions For 5 Years Of Experience

1. How to create a half circle using css ? 
2. How to create a triangle using css ? 
3. How to create a carousel using css ?
4. What are the benefits of using CSS preprocessors ?
5. How can you implement responsive images ?



Note:- You are expected to know


       - CSS Interview Questions For Freshers


       - CSS Interview Questions For 3 Years Of Experience

JavaScript Interview Questions For 5 Years Of Experience

1. What are the design patterns in JavaScript ?
2. What is event loop in JavaScript ?
3. How to deep clone in JavaScript ?
4. How to flatten an array in JavaScript ?
5. What is debounce in JavaScript ?
6. Write a code to flatten the contents of an object ?
7. How to create virtual dom in JavaScript ?
8. What is critical rendering path ?
9. What is a freeze method in JavaScript ?
10. What are solid principles in JavaScript ?
11. What is the seal method in JavaScript ?
12. Difference between Angular and React ?
13. How to watch variable changes in JavaScript ?
14. How to create a change detection mechanism of JavaScript framework ?
15. What is functional programming in JavaScript ?
16. What is quick sort and what is it’s time complexity ?
17. Explain bubble sort and insertion sort with example ?
18. What is a REST API ?
19. How to apply conditional breakpoints in chrome browser debugging tool ?
20. Why storing JWT in cookie is safer than storing JWT in session storage or local storage? Is storing in cookie 100 percent safe ? what if I copy JWT from cookie in the browser debug panel and use it in a CSRF attack ?
21. What is an execution context and lexical environment in JavaScript ?
22. What is generator function in JavaScript ?
    
    Angular Interview Questions For 5 Years Of Experience

1. What are custom directives in Angular and how to create them ?
2. What are the security features in angular ?
3. What is storybook in Angular ?
4. What are the design patterns in Angular ?
5. What are interceptors in Angular ?
6. How to create a custom decorator in Angular ?
7. How to make multiple http calls in parallel in Angular ?
8. What is a module in TypeScript, and how can you use it ?
9. How to hit an API before the loading of the appComponent ?
10. If there is a package(or say library) that is not available through NPM , then how would you use it in your angular application ?
11. How to optimize Angular application using OnPush change detection strategy ?
12. What are the types of forms available in Angular ? Explain with syntax.
13. How to improve Angular app performance ?
14. What is AuthGuard in Angular ?
15. Explain switch map , mergemap , forkjoin, combineLatest, concatMap, exhaustMap . what would happen if any of the requests fails in switch map , merge map or forkjoin ?
16. What is dependency injection ?
17. How do you handle errors in RxJS observables ?
18. How do you implement backpressure in RxJS ?
19. Can you explain what is the purpose of using schedulers in RxJS, and give an example of a common scheduler ?
20. What is the difference between a pipeable operator and a patch operator in RxJS ?
21. What is the difference between AOT and JIT ?
22. How do you use the retry() operator in RxJS, and what is its purpose ?
23. What is Angular change detection and how does it work ?
24. What is zone js in Angular ?
25. How to dynamically create form fields with FormArray in Angular ?
26. What is ngZone in Angular ?
27. Can event triggered in parent cause change detection in child with OnPush strategy in Angular ?
28. Can event triggered in child cause change detection in parent with OnPush strategy in Angular ?
29. How to optimize an Angular application ?
30. Explain pure and impure pipe in Angular ?
31. How to test an Angular Service ?
32. Explain ngAfterContentInit hooks ?
33. Explain ngAfterViewInit hook with example ?
34. Difference between ngAfterContentInit and ngAfterViewInit ?
35. What is View Encapsulation in Angular ?
36. What is the use of polyfills ?
37. What is scan operator in RxJS ?
38. How does spyOn work in Angular ?
39. How to mock http request in Angular ?
40. What is reduce operator in RxJS ?
41. What is the use of trackBy in Angular ?
    
    
    Note:- You are expected to know
    
    
           - Angular Interview Questions For Freshers
    
    
           - Angular Interview Questions For 3 Years Of Experience
    

Git Interview Questions For 5 Years Of Experience

1. What is tagging in git ?
2. What is rollback in git ?
3. What is git bisect command ?
4. What is the use of Reflog in git ?
5. How does Git handle file conflicts when merging branches ?
6. What are Git hooks, and how can they be used in a repository ?
7. Explain the concept of "cherry picking" in Git and how it can be done ?


Note:- You are expected to know


       - Git Interview Questions For Freshers


       - Git Interview Questions For 3 Years Of Experience

JavaScript Coding Interview Questions 

1. Write a code to display which character is coming how many times in a given string ?
2. Write a function to check whether a string is a palindrome or not with time complexity of the code ?
3. Given an array containing some numbers write a code to that will find out the missing numbers in the array's range ?
4. Write a code to reverse all the words of a given string. For example :
   Input : “how are uoy”
   Output : “Woh era you”
5. How to segregate 0s and 1s in an array in Javascript ?
6. Write a function to check if an anagram of a string is palindrome or not ?
7. Write a code to check if two strings are anagram of each other ?
8. Write a code to group items of array by category ?
9. How to get the maximum count of consecutive 1's in an array ?
10. How do you write a factorial code in JavaScript ?
11. Given an integer array, find the subarray with the largest sum, and return its sum ?
12. How to merge two sorted arrays in JavaScript ?
13. How do you check if a value is a prime number ?
14. How to reverse a string in JavaScript using recursion ?

Source:- Frontend Interview Questions For 5 Years Of Experience

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