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Senior Frontend Engineer Interview Questions

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1,542 senior frontend engineer interview questions shared by candidates

Write a calendar with overlaying events from scratch. It should have 1 column with hour markers, another column with events spanning these hours. Add input fields panel. User should be able to create/edit/delete these events Clicking on any event should autofill the input and allow for edit. All this in 45 mins time. Good luck!
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Senior Frontend Engineer

Interviewed at Ramp

3.9★
Jan 24, 2025

Write a calendar with overlaying events from scratch. It should have 1 column with hour markers, another column with events spanning these hours. Add input fields panel. User should be able to create/edit/delete these events Clicking on any event should autofill the input and allow for edit. All this in 45 mins time. Good luck!

Comp Sci interview: Difference between a Stack and a Queue. Difference between Dynamic and Static typed languages. Look at this psuedo code and tell me what it does (it was a merge sort.) This interview felt like overkill for a frontend job, I've never once needed to implement my own version of a merge sort in frontend code for a web app... React interview: Describe the useEffect dependency array. What are hooks. Describe various ways to style an application in React. Describe ways to store and share data in React. Describe the Virtual DOM. Describe how you go about debugging an issue.
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Senior Frontend Engineer

Interviewed at Classy, Inc

3.4★
Jul 22, 2023

Comp Sci interview: Difference between a Stack and a Queue. Difference between Dynamic and Static typed languages. Look at this psuedo code and tell me what it does (it was a merge sort.) This interview felt like overkill for a frontend job, I've never once needed to implement my own version of a merge sort in frontend code for a web app... React interview: Describe the useEffect dependency array. What are hooks. Describe various ways to style an application in React. Describe ways to store and share data in React. Describe the Virtual DOM. Describe how you go about debugging an issue.

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