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Software Engineer Front End Interview Questions

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852 software engineer front end interview questions shared by candidates

Design: 1. TS vs JS? 2. How would you implement authentication and authorization(with credentials) and protect the usage using encryption algorithms (he asked a lot about security) 3. Is JS a compiled language? 4. A lot of question about CSR vs SSR(how websites are loaded in each, which is more optimized, which one to use and when) 5. Code a function that prints all of the keys and values of the object in this manner ["key1.val1", "key1.val2", "key1.key2.val1"] and etc (i.e stringify an object without JSON.stringify()) Behavioural: 1. If you had a conflict with co-worker, how would you resolve? 2. If you were assigned a complex task by your manager, what would you do? 3. Why VISA? 4. Tell about your most complex projects and/or school projects 5. What is the thing you value the most in a work environment? 6. How do you overcome complex topics? 7. What is your passion? What are your future goals? 8. How do you gather feedback of your performance invidually or in group? Technical: 1. Check if string is palindrome 2. What is debouncing? Code an example? 3. How to optimize the website with React.js or vanilla js 4. What is adaptive and responsive design? 5. What is browser caching and http caching? How are they different? 6. What are promises/async code?
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Software Engineer - Front End

Interviewed at Visa Inc.

3.8★
Dec 4, 2023

Design: 1. TS vs JS? 2. How would you implement authentication and authorization(with credentials) and protect the usage using encryption algorithms (he asked a lot about security) 3. Is JS a compiled language? 4. A lot of question about CSR vs SSR(how websites are loaded in each, which is more optimized, which one to use and when) 5. Code a function that prints all of the keys and values of the object in this manner ["key1.val1", "key1.val2", "key1.key2.val1"] and etc (i.e stringify an object without JSON.stringify()) Behavioural: 1. If you had a conflict with co-worker, how would you resolve? 2. If you were assigned a complex task by your manager, what would you do? 3. Why VISA? 4. Tell about your most complex projects and/or school projects 5. What is the thing you value the most in a work environment? 6. How do you overcome complex topics? 7. What is your passion? What are your future goals? 8. How do you gather feedback of your performance invidually or in group? Technical: 1. Check if string is palindrome 2. What is debouncing? Code an example? 3. How to optimize the website with React.js or vanilla js 4. What is adaptive and responsive design? 5. What is browser caching and http caching? How are they different? 6. What are promises/async code?

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