Can anyone explain me this function? What does it do? Why is it require? Steven Parker
The purpose of creating the randomColor() function is making the whole process as DRY (Don't Repeat Yourself) as possible.
The function randomColor() along with the function randomRBG() now encompass all the seperate tasks previously completed by the lines (it does the exact same thing basically, just makes it more modular)
red = Math.floor(Math.random() * 256 ); green = Math.floor(Math.random() * 256 ); blue = Math.floor(Math.random() * 256 ); rgbColor = 'rgb(' + red + ',' + green + ',' + blue + ')';
it may not be less space used but being able to contain all of these uses within a single function makes it easier to call again in other uses in your project, and it makes it easier to edit the functionality of your code in general.
hope this helps!