1.what is the difference between array and linkedlist? 2.what is data structures and explain some of them? 3.can we use break in for in and for of loops? 4.what is useEffect hook? 5.Explain the component lifecycle in react js 6.react is a library or framework? 7.what is node js? 8.what is express js? 9.name some commonly used HTTP methods? 10.difference between mongodb and SQL 11.what is props? 12.what is useMemo hook? 13.what is OOPS ? 14. is javascript an object-oriented language? 15.what is abstraction? 16.what is method over-riding?
