Understanding the JavaScript Modulo Operator

Josh Comeau2023-09-18 20:000 views

One of the most commonly-misunderstood operators is Modulo (%). In this tutorial, we'll unpack exactly what this little bugger does, and learn how it can help us solve practical problems.

Keep reading.

Source：https://www.joshwcomeau.com/javascript/modulo-operator/

My favorites

PreviousAn Interactive Guide to CSS Grid NextMaking Sense of React Server Components

How We Built Kisan Saathi in 24 Hours: Surviving 3 AM Bugs, Voice AI in Kannada, and Building for Real Farmers 🌾

We Built Kisan Scheme Saathi in 24 Hours: Our Hackathon Journey, 3 AM Bugs, and Lessons from the Judges In rural Karnata

0dev.to AI

Printable LEGO instructions from a three.js viewer: cqw units, headless Edge and a page count

A 3D viewer is great on a laptop. On the living-room floor, with a kid and a pile of bricks, you want paper. So every gu

0dev.to CSS

Spec tables on product pages: keep them as real tables, and make them work on a phone

Every hardware or electronics product page ends up with a spec table. Thread size, length, material, voltage range, what

0dev.to CSS

S3 malware scanning: check uploads with GuardDuty

S3 malware scanning is one of those topics that tends to be missing from architecture diagrams. We build uploads with pr

0dev.to Security

Storybook for Beginners: Build Your UI Components in Isolation

Storybook is a tool that lets you build and test your UI components one at a time, outside your app. Instead of clicking

0dev.to React

We built TerraTrend Observatory for NASA Space Apps 2026: is this place really changing?

We just submitted TerraTrend Observatory to the 2026 NASA Space Apps Challenge as Team GreenGen, from Kisumu, Kenya. Thi