useMemo vs useCallback vs useRef
Senior Javascript Developer Interview Questions
158 senior javascript developer interview questions shared by candidates
Tell me about yourself and a brief overview of your projects
For the code challenge, there was a wide range of questions, ranging from improving performance of code to identifying security features, and even reviewing a pull request. The trial involved making changes to an unfinished React/Redux WordPress plugin.
JavaScript Closures
Difference between Map() and forEach()?
- Why did you choose to do "X" way? in your take-home exercise interview. - Do you see any other solutions toward this?
They asked me about patterns and good practices in my field
Something about binary search trees.
Q: What are Promises in Javascript? How can you avoid callbacks hell with them?
One thing that stood out was the unexpected range of topics covered during the interview. While the role was for a Senior JavaScript Developer position, the interview went beyond just JavaScript and React, covering HTML, CSS, databases, AWS, and even backend technologies. One of the more surprising parts was that they had two exercises focused purely on JavaScript, which I answered correctly. Despite feeling confident about my answers and the positive feedback from the interviewers, I was shocked to learn later that I wasn’t selected for the role.
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