1. Javascript specific question like output of this console.log(0.1+0.2) console.log(undefined+"5") console.log("undefine"+5) 2. Remove duplicates from an array .Follow up question on its time complexity 3.Second largest element in an array . Same follow up question as above 3. What are props in react.js ? 4.What is state in react.js? 5. What are functional components? 6.How can you have state inside your functional component ?