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Senior Frontend Developer Interview Questions

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1,622 senior frontend developer interview questions shared by candidates

1. Flat an array 2. Remove duplicate element from array in three way 3. Consume get apis and show list in React js 4. What is useMemo and useCallback why we use them. Need to show the scenerio where we use these two hooks 5. Charcter shifting in js logical question. 6. HOc 7. Closure
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Senior Frontend Developer

Interviewed at Bounteous x Accolite

3.4★
Jan 10, 2024

1. Flat an array 2. Remove duplicate element from array in three way 3. Consume get apis and show list in React js 4. What is useMemo and useCallback why we use them. Need to show the scenerio where we use these two hooks 5. Charcter shifting in js logical question. 6. HOc 7. Closure

The interview also included three practical tasks: JavaScript Execution Order: Determining the output of a series of console.log(), async functions, Promises, and setTimeout(), testing understanding of the event loop and execution order. TypeScript Challenge: Identifying the resulting type of an interface after a transformation using TypeScript utilities. React Code Review: Debugging a faulty React component that had common mistakes like missing keys in lists, hooks inside conditional statements, and improper use of context values causing re-renders.
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Senior Frontend Developer

Interviewed at Semrush

4★
Mar 13, 2025

The interview also included three practical tasks: JavaScript Execution Order: Determining the output of a series of console.log(), async functions, Promises, and setTimeout(), testing understanding of the event loop and execution order. TypeScript Challenge: Identifying the resulting type of an interface after a transformation using TypeScript utilities. React Code Review: Debugging a faulty React component that had common mistakes like missing keys in lists, hooks inside conditional statements, and improper use of context values causing re-renders.

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