Number of spaces used inside an if/else condition

I’m working on Exercise 1B and what I’m concerned about is how many spaces or tabs do I need to indent inside an if/else condition statement?

Spaces aren’t important to JS unless they’re inside a string - meaning JavaScript won’t take them into considering during execution.
Now convention dictates that the formatting remains cohesive for all programmers. It’s easier to read that way.
I found this useful post on StackOverflow. I am hoping it’ll help: