1) What type will return the function if an error occurs three. 2) Can be OOP applied to functional language 3) What difference are between props and state in React? 4) How many threads are in JavaScript? 5) What is redux and its main parts. 6) Describe SOLID 7) What is a difference between let, var and const 8) Describe what is a HOC 9) When do we use rebase in git