How can I begin understanding the outputs of the game that we play in here

Question

I do not understand a lot od Javascript codes, I Wonder how yo start

Answer 1

Practice your skill by actual coding, create some small programs based on what you have learned from the fundamentals course that you have taken and you will become better at the language you have chosen in no time (in your case javascript). The point of the game is not to win but to test your knowledge on random questions: each time you win you proove yourself that the time spent practicing it is finally worth it, each failure should serve you as a guidance to which part of the language is your weaker side and where you have to pay more attentiion to, it is like a compass to show you what is the next thing to be practiced.
This is not a competition but a learning experience and your level does not define your worth, look at this community as a place where you can learn, get inspired, ask for help if needed and meet other people (less and more expirienced) walking the same road as you.