Top 10 common ReactJS interview questions ! 😲

Well! Nobody likes a lot of chit-chat before coming to the real thing especially when it comes to the job, so here I’ll be sharing the 10 most common questions that you’ll get in your interview on ReactJS.

I won’t share the answers because it is good to search and understand on your own if you don’t know any.

HERE YOU GO !

Q1: What is state and the difference between state and props ?

Q2: What is JSX ? How browser reads it ?

Q3: What are react hooks ?

Q4: What are Pure Components and when should we use them over shouldComponentUpdate() ?

Q5: What is the second argument passed in the setState() ?

Q6: Explain the lifecycle of React.

Q7: How to pass props from one component to it’s Nth Child ?

Q8: How to perform side-effects in functional components ?

Q9: Difference between functional and class components ?

Q10: What is a Virtual DOM ?