Below, I’ll briefly describe what P5.js is, what some of the initial roadblocks were, and how you can jump right into making some art using P5.js and ES6.

Unfortunately, JavaScript’s Math.random() does not support seeds, so we’ll instead rely on a popular library called seedrandom, which provides a seedable random number generator.

This is the p5.js library, a JavaScript version of the Processing environment for Java. If you're familiar with the online p5.js editor, you know what this is, but if you come from Khan Academy, just ...