Day.js

Day.js is a lightweight JavaScript library for parsing, validating, manipulating, and formatting dates and times. It provides a simple and immutable API similar to Moment.js but with a much smaller bundle size, making it ideal for modern web applications. It supports time zones, locales, and plugins for extended functionality.

Also known as: dayjs, DayJS, day-js, day.js, Day.js library

Why learn Day.js?

Developers should use Day.js when they need a fast and efficient date manipulation library in JavaScript projects, especially in front-end applications where bundle size is critical. It's particularly useful for handling date formatting, calculations, and comparisons in web apps, mobile apps, or Node.js backends, offering a drop-in replacement for Moment.js with better performance.

Learning Resources

• docs: Day.js Official Documentation
• docs: Day.js GitHub Repository
• tutorial: Day.js Tutorial on FreeCodeCamp
• video: Day.js vs Moment.js Comparison Video
• course: Day.js Course on Udemy