Question

Math.random() returns _______________

(a) random number between 0 and 1

(b) random number between 1 and 10

(c) random number between 1 and 100

(d) random number between 0 and 10

I had been asked this question in an international level competition.

This intriguing question comes from Essential JavaScript and jQuery in division HTML Tables, Javascript & Jquery Basics of HTML

Answer 1

Right option is (a) random number between 0 and 1

To explain I would say: Math.random() generate any random number between 0 and 1. If we use Math.random() with Math.floor() it returns any random integer. E.g. Math.floor(Math.random * 1000); It will generate any random number between 0 and 999. For the sake of convenience we can also define a random function.