React Js Developer Interview Questions

Front End Developer (React JS)

Interviewed at HashedIn by Deloitte

4.1★

Aug 25, 2019

Routing in Angular

Front End Developer (React JS)

Interviewed at HashedIn by Deloitte

4.1★

Aug 25, 2019

1. the only Big question he asked Diff. b/w React and Angular ( interviewer wasted 20-25 min of time on this).

Senior Frontend Developer-React JS

Interviewed at Persistent Systems

4.1★

Oct 7, 2024

First Round is a Hacker Rank Coding Questions which consists of few MCQ questions and two complete coding questions 1. Complete Javascript Problem 2. Complete React Problem statement

Node Js+React Developer

Interviewed at Persistent Systems

4.1★

May 7, 2021

Why do you want to join persistent?

Full-stack Engineer (React, Node Js)

Interviewed at Persistent Systems

4.1★

Dec 25, 2021

Some basic javascript and reactjs questions

React Js Developer

Interviewed at Capgemini

4.1★

Sep 12, 2023

How React works Life Cycle hooks in React and its uses What is the use Effect hook and how it is used

React Js Developer

Interviewed at Capgemini

4.1★

Oct 6, 2025

Implement the denouncing function, ans of null ===null, what is lazy loading, what is virtually dom

React Js Developer

Interviewed at Capgemini

4.1★

Feb 6, 2024

1.Hoisting 2.Closures 3.Void elements in html 4.Virtual DOM in react comparison with Real DOM 5.What is ref,forward ref 6.let,const,var? 7.Array methods in JavaScript 8.Hooks in react 9.HTML5 and HTML old versions difference 10.ES6 features 11.Semantic tags in html 13.Write react code to display elements from an array 14.What is props and state in react 15.Higher order components in react 16.Why react? 17.What is JSX? 18.Event loop ?