Who knows the code that specifies random numbers?

Question

plz.

Answer 1

1.Math.floor(Math.random()*5)
2.~~(Math.random()*5) (flip bit two times)
3.Math.random()*5|0

Answer 2

Some little example

https://code.sololearn.com/WcYpoMhTU6Bu/?ref=app

Answer 3

Thanks