Example: Searching only for Freecodecamp Jquery question part only
I use these search functions often to test whether I get the big picture or not from the course information I learn (not just from freecodecamp, but other sources like youtube , udemy, lynda.com, etc)
I play around with my data when its all collapsed like this to see if I can remember it off-hand, kind of like flashcards , or kind of like anki (Flashcard software)