How to debug JavaScript?
Senior Frontend Engineer Interview Questions
2,913 senior frontend engineer interview questions shared by candidates
- What is an array - What is a string - What are the principles of OOP - What is polymorphism - What is a primitive vs reference type value
There were three interview questions, all related to Javascipt. 1. polyfill for document.querySelector 2. Curry function 3. Promise based function application
Tell about your work and experience.
Do 100s of DOM manipulation in 1 hour, they make sure you cant complete in 1 hour
What distinguishes a junior, middle, and senior developer
7-question multiple-select test related to FE skills (React, Next.js). The weird part was that all the questions were multi-select, so basically, multiple answers were correct. However, as my interviewer mentioned, there were "more correct" and "less correct" options — but you could only choose one. Here I started feeling a bit confused, but okay, I paid attention to this "twist."
Q: Create Menu with children as per image. How would you close opened children when you click on another parent? How would you keep your children opened when you click on child's children? Q: Implement flag fetching API call. How would you cache it? How would you measure the performance? What would you do if the server fails? Q: Jira sprint board. How would you build it?
First round of interview done by the technical manager - 30 mins. questions from previous experience, project, more of a technical and cultural fit round. Second round with two engineers - Interview of 1 hour including a 30-35 mins of Technical Assessment on React coding exercise and 20-25 mins on past projects, technical / strategic / management / leadership set of questions.
Past experience. Test optimization. Why leave current place.
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