Page.js
Page.js is a lightweight client-side routing library for JavaScript applications, designed to handle navigation and URL management in single-page applications (SPAs). It provides a simple API for defining routes, handling page transitions, and managing browser history without requiring a full-fledged framework. It is often used in vanilla JavaScript projects or with minimal frameworks to add routing capabilities efficiently.
Developers should learn Page.js when building SPAs that need basic routing without the overhead of larger frameworks like React Router or Vue Router, as it is small (around 1KB gzipped) and easy to integrate. It is ideal for projects where performance and simplicity are priorities, such as small web apps, prototypes, or when using lightweight libraries like Preact or vanilla JS. Use cases include creating multi-page-like experiences in SPAs with clean URLs and back/forward navigation support.