can't get it. What is the difference between the following:
[ 'n', 'w', 'n', 'w', 'n', 'w', 'n', 'w', 'n', 'w' ] must be false
[ 'n', 'e', 'n', 'e', 'n', 'e', 'n', 'e', 'n', 'e' ] must be true
Thank you.