Explain Math.floor(Math.random())

Question

I have seen many places using Math.floor() and Math.random()

like below

$(\'a.random-color\').hover(function() { //mouseove         


        

Answer 1

Math.floor will give a whole number and gets rid of the decimals.

Math.random returns a number between 0 and 1 and therefore will produce decimal numbers when multiplied with 256. Thats why you want to use floor to get rid of the decimals otherwise the rgb values won't work.