why this code is not working?

Question

https://code.sololearn.com/W1qriB9zFjGE/?ref=app

Answer 1

Convert ch to number.

Number(ch);

Answer 2

Shweta Mahajan change ${n} as "+n+" now it will be print n in console if case true.

Answer 3

nihil It's the Assignment Question 😌

Answer 4

nihil I get it, I think they gave this Question just for practice. 😊

Answer 5

Ćheyat Thanks, totally worked.
but in console, ${n} does not print marks. why so?