Here is my code for the challenge:
So to note some mistakes I made. I originally used:
if(islower(letter)){return true;}
else{return false}
however this was only checking the first letter so I made the changes in my screenshot and now it works for any letter that gets capitalized and my code is even smaller so a win win 
Have a great day everyone.
Edit: Hey I got it right just like in the video. Sweet.