How to generate a random integer in JavaScript
Monday, May 25, 2026
Generating random integers is essential for dice games, array shuffling, test data generation, random avatar selection, and procedural content creation in JavaScript applications.
With over 25 years of experience in software development and as the creator of CoreUI, I’ve used random integer generation in content selectors, chart element IDs, and demo data generators.
The standard approach is combining Math.random() with Math.floor() to produce pseudorandom whole numbers within a specific range.