SAP Associate Software Engineer Developer interview questions

The questions asked were as follows: Tell me about yourself Coding question about sets (Pair Coding) (time and space complexity of the same) Why did you use sets? Can you use any other data structure? Difference between hashmap and set How to handle collisions in hashmap SQL query : Find the second highest salary in the employee table using nested query and not using nested query Few other questions regarding the problem

1. What is difference between package.json and package-lock.json? 2. Difference between ^, ~ and * in package.json 3. BFS and DFS 4. https://www.geeksforgeeks.org/puzzle-22-maximum-chocolates/ 5. https://www.geeksforgeeks.org/puzzle-34-prisoner-and-policeman-puzzle/ 6. Function currying, Function borrowing and IIFE in JAVASCRIPT 7. Program to print pyramind of numbers 8. Reverse a string 9. Is JS single threaded or multi? 10. What configuration is needed to make ES6 compatibility. 11. Inheritance in Javascript and Prototype 12. What is OOPS and it's benifits. 13. Observable vs Promise