What is React, How react Works and ES6 theory question
React Developer Interview Questions
3,476 react developer interview questions shared by candidates
- Several common questions about JS, typescript, React... - Do a quick code JS exercise evaluating Big O notation. - Do a logic/algorithm exercise evaluating different options about variables, arrays, fifo/lifo methods...
Q: What is react? Q: Why do we use react instead of other frameworks? Q: What is the virtual dom concept? Q: useState & use effect hooks? Q: Class-based component and functional component? Q: How to call parallel call API? Q: Use of Key word in React? Q: diff between === & == Q: Basis width of mobile phone? Q: universal selector? Q: media query? Q: diff between absolute and relative position?
1st round Face-to-Face interview What is promise chaining ? What is difference between asynchronous & synchronous ? what is useeffect hook? what is hoisting ? what is the purpose of key property in react? what is virtual dom? what are three components of Promise ? what is the purpose of useMemo? what is memoization? what is caching? what does map & reduce function do with an array? what is server-side rendering & client-side rendering ? 2nd Technical interview 1. const a = {color:"blue",name:"abc"} b = a b.color = "green" so now will the a will be affected if yes then why? 2. const a = "This is a text" output should be "sihT si a txet" tell me the approach for it How many hooks you have used useEffect basics question what if i removed the dependency array from it what will happen if the dependency array will be missing from the useeffect? Context Api provider question RTK basic questions usedispatch, useSelector
Basic of React native Basic of JavaScript
Domande abbastanza semplici su JavaScript (operatori, metodi) e design patterns in generale
Q: What is useEeffect()? Q: How to mange state? Q: How Redux works? Q: Some Questions about form validation (Formik form)?
Basics of JS like hoisting, curring, Is JS synchronous or not, callback hell, promises, ES6 features, difference between forEach and map. React - states, component life-cycle, routing.
1. What are the life components of reactjs? 2. Define use state, use effect.
STAR type question answers, behavioral part. You are told what you will be asked, and you can prepare for it, which is fair.
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