Questions are mostly like what is VDOM, Redux, State & Props etc. Nested component event handling etc
React Developer Interview Questions
3,481 react developer interview questions shared by candidates
Javascript Data Types?
L1: css positions, props, virtual dom, functional components, class components, difference between them, Hoisting, promises, promises.all, es6 functions, props drilling, context api, redux, difference between class and functional, callback, diff let, var and const, css properties, git stash, cherrypick, reducers, setState, hooks, spread operator, rest operator, diff between both, react optimization, error boundaries, closures L2: Q1. Implement progressbar which keeps incrementing after every 10s to 10px till it reaches browser width. Q2. Write a function to print n prime number eg. n=5 print 5 prime numbers eg: 2,3,5,7,9 etc. Q3: Write a program to shuffle string 'sadads' in all possible patterns and find the palidrome in it.
Difference between controlled and uncontrolled component
Can you tell me about yourself.
They asked my past experiences and english level , also my salary expectation. This was the phase 1. I am waiting for the next
Tell me about yourself
How many years of React experience do you have?
Javascript vs Typescript ? Rest vs GraphQl ? Context vs Redux vs Other ? CSS vs SASS vs Styled Components ?
Questions about React hooks, passing values via URL, imperative and declarative programming, JS class syntax, arrow functions, object references, callbacks, promises and possible react app performance bottlenecks.
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