Answer 1

Mofey
Solo start position at 8.
8th position is S.
javascript start count 0.

Answer 2

It gives 8 as the output since the index of any string starts with 0.
The index of "Solo" is 8 so the pos variable will store 8 and display it and after that it will increment the pos value since
pos++ is a post increment operation , firstly the value will be assigned then it will be incremented

Answer 3

Welcome Mofey ☺