TLDR Web Dev · ARTICLES & TUTORIALS

UNDERSTANDING THE JAVASCRIPT MODULO OPERATOR

joshwcomeau.com5 min read

Summary from the TLDR Web Dev newsletter

This blog post explains how the modulo operator works by examining it through a new mental model for division. The modulo operator is useful for various real-world use cases, like circular arrays. Circular arrays are common on the web and can be used for various things, like an array of status colors.