Code: Generate a Random Number Between min and max Both Inclusive Using JavaScript

Last updated on 11 Dec, 2022

Here is a JavaScript function that returns a random integer from a range of numbers.

function generateRandomNumber(min, max) {
  return Math.floor(Math.random() * (max - min + 1)) + min;

Math.random() returns a value between 0(inclusive) and 1(exclusive). That means, the result can have 0, but not 1.

Math.floor() returns the nearest integer less than the supplied value. Math.floor(2.8) returns 2.

Using these behaviors above logic returns a number between supplied min and max value.

--- ○ ---
Joby Joseph
Web Architect