Yahoo Technical Lead Interview Questions and Answers

Coding puzzle on hacker rank

Q1. Explain redux toolkit
Ans. 
Redux Toolkit is an official, opinionated, batteries-included toolset for efficient Redux development.
• Includes utilities like createSlice, createAsyncThunk, and createEntityAdapter for easier Redux setup

• Reduces boilerplate code and simplifies common Redux patterns

• Encourages best practices and helps developers write more maintainable code
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Q2. Explain use memo hook
Ans. 
memo hook is a React hook used for optimizing performance by memoizing the result of a function
• Memo hook is used to prevent unnecessary re-renders by caching the result of a function

• It is useful when a component re-renders frequently with the same props

• Example: const memoizedValue = useMemo(() => computeExpensiveValue(a, b), [a, b])
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HR told about the company on the first day, how it works, told the rules, showed the management and a lot

They did conduct a group aptitude test

Q1. Here technical experience required for the role was tested
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Q1. This is where they discuss the salary packages if selected
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