What's p5.js

Question

What's p5.js and how it can help me

Answer 1

I just googled this, which you honestly should've done and the first thing I get is

"p5.js a JS client-side library for creating graphic and interactive experiences, based on the core principles of Processing."

As someone aspiring to be a programmer/developer, it is imperative that you learn to Google and search for information that's easy to find as this is going to be a good chunk of your job and day to day basis.