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React Js Developer Interview Questions

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538 react js developer interview questions shared by candidates

The technical interview focused on working with objects and system design, specifically explaining the workflow of a micro-front-end service with a particular emphasis on the UI. The final panel interview consisted of a behavioral interview that included questions regarding communication skills and daily workflow with your team.
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Senior Software Engineer (React JS)

Interviewed at Abbott

3.7★
Jul 13, 2023

The technical interview focused on working with objects and system design, specifically explaining the workflow of a micro-front-end service with a particular emphasis on the UI. The final panel interview consisted of a behavioral interview that included questions regarding communication skills and daily workflow with your team.

React.js, TypeScript, JavaScript, GraphQL - What is pureComponent ? - lifecycle methods - hooks - diff between useEffect & useLayoutEffect - portals - how do you make API calls - refs in React, when are they used ? - error handling - what is prop drilling ? - difference b/w createElement() & cloneElement - React Router Authentication & Authorization - how do you handle browser incompatibilities GraphQL: - what are benefits of using GraphQL - GraphQL queries & mutation - multiple queries in one request - REST API request methods GET, POST, PUT, PATCH, DELETE - error handling TypeScript - getter & setters - generics in TS - declare in TS, namespace - classes in TS - assert in TS
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Senior Frontend Developer-React JS

Interviewed at Firstsource Solutions

4.1★
Jul 25, 2023

React.js, TypeScript, JavaScript, GraphQL - What is pureComponent ? - lifecycle methods - hooks - diff between useEffect & useLayoutEffect - portals - how do you make API calls - refs in React, when are they used ? - error handling - what is prop drilling ? - difference b/w createElement() & cloneElement - React Router Authentication & Authorization - how do you handle browser incompatibilities GraphQL: - what are benefits of using GraphQL - GraphQL queries & mutation - multiple queries in one request - REST API request methods GET, POST, PUT, PATCH, DELETE - error handling TypeScript - getter & setters - generics in TS - declare in TS, namespace - classes in TS - assert in TS

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