React js Interview questions For Freshers & Experienced

What is React JS?

React JS or React happens to be a JavaScript library utilized to create user interfaces. It can be utilized as a foundation in the improvement of mobile applications or a single-page because it is optimal for prepossessing swift changing data that requires to be listed. But fetching data happens to be only the start of the happenings on web pages. This is the reason that a complex React applications generally need the utilization of extra libraries for routing, interaction with an API, state management, Adios, Redux, React Router are various instances of aforesaid libraries.