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React Developer Interview Questions
3,481 react developer interview questions shared by candidates
1. Versions of React you have worked on and features of latest React version you have worked with? 2. All the hooks that you have used. Explain when to use useCallback. 3. How to manage state in React? 4. Custom hooks. Why use it? 5. What CSS preprocessors you have worked on? 6. Redux related questions. 7. Use of effects in Saga middleware. 8. Which library have you used for testing? Some basic questions. 9. Positions in CSS 10. Grid vs Flex 11. Semantic elements 12. JS questions ---------------- var a = [] function test(b) { a.push(b) return b } var a = [1,2,3] var b = a b.push(4) console.log(a) ---------------- let i; for (i = 0; i < 3; i++) { const log = () => { console.log(i); } setTimeout(log, 100); } ---------------------- var obj = { a: “John”, fun1: function () { console.log(this) } } obj.fun1() ----------------- var obj = { a: “John”, fun1: () => { console.log(this) } } obj.fun1() -------------------- 13. Create a timer/stopwatch using react.
What is generator function? What is reconciliation process.
Adding features to existing code by adding event listeners
General first-round question like self-introduction, why do you want to work here etc.
How Promise works? What is Promise.all. Write code for both.
Q: What is bable and transpiler Q: what is jsx why we use it Q: what are difference between let,const and var
Near by restaurant app sample.
O que são props e como elas são usadas?
Você priorizaria a Lyncas caso tiver participando de outros processos?
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