Intel Software Engineer, Full Stack | First Round

I had my interview this June 1st round (Hillsboro, OR), following questions were asked in my Intel interview:

1. What is closure in JS?
2. Name 4 OOP principles ?
3. What is promises in JS?
4. Difference between "==" && "===" in JS?
   One coding question:

https://leetcode.com/problems/squares-of-a-sorted-array/ and its time complexity.