What is node js and angular js,why we use it?

Answer 1

All and more of frontend and backend frameworks are explained here
https://www.sololearn.com/discuss/1301376/?ref=app just in short
https://code.sololearn.com/WbeONr62p8FI/?ref=app
https://code.sololearn.com/WorUAHe6KN9q/?ref=app

Answer 2

Awesome coding hehe xD Did not understand how that code work as I'm still learning CSS (I just finished HTML5) but I hope soon I will.