How to choose the largest or smallest number among three variables?

Question

Node.js

first = utils.random(1, 10)
second = utils.random(11, 20)
third = utils.random(21, 30)

how to choose the largest / smallest among these variables?

Answer 1

first = utils.random(1, 10)
second = utils.random(11, 20)
third = utils.random(21, 30)

first is the smallest, third is the largest.