Senior Frontend Developer Interview Questions

1,607 senior frontend developer interview questions shared by candidates

In JS: 1. Memoize implementation, 2. closure related questions 3. Event bubbling/capturing 4. Publisher-Subscriber pattern 5. CSS basics 6. performance -> optimization of delivery of site assets 7. Questions on how to bootstrap the project. 8. Grouping, sorting , API retry
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Senior Frontend Developer

Interviewed at CommerceIQ

3
Aug 11, 2019

In JS: 1. Memoize implementation, 2. closure related questions 3. Event bubbling/capturing 4. Publisher-Subscriber pattern 5. CSS basics 6. performance -> optimization of delivery of site assets 7. Questions on how to bootstrap the project. 8. Grouping, sorting , API retry

Two coding questions: He showed me some code, and I needed to describe what it does (I was working on calculating the average sum and the second was using a buffer). A coding task: You have a folder containing nested subfolders and files. When you click on a folder, the entire tree structure below it should open. You can also click on a file, but it won’t expand anything further. Write this code using recursion.
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Senior Frontend Developer

Interviewed at HoneyBook

4.2
Apr 1, 2025

Two coding questions: He showed me some code, and I needed to describe what it does (I was working on calculating the average sum and the second was using a buffer). A coding task: You have a folder containing nested subfolders and files. When you click on a folder, the entire tree structure below it should open. You can also click on a file, but it won’t expand anything further. Write this code using recursion.

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