JavaScript30 is an open source repository created by Wes Bos that provides a 30-day coding challenge to help developers strengthen their vanilla JavaScript skills. It includes starter files and completed solutions for each daily project, covering a wide range of practical exercises like clocks, video players, geolocation apps, and more. The challenge avoids frameworks and libraries, focusing purely on core JavaScript. Each project introduces hands-on coding tasks that reinforce DOM manipulation, events, APIs, and browser features. The repository also encourages learners to share their own solutions and improvements, fostering a strong community around the challenge. With its incremental structure, it’s a popular resource for building confidence and fluency in JavaScript.

Features

  • 30-day coding challenge with 30 unique projects
  • Pure JavaScript without frameworks or libraries
  • Starter files and completed solutions provided
  • Covers DOM manipulation, events, and browser APIs
  • Encourages community contributions and variations
  • Practical projects for real-world coding practice

Project Samples

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Categories

Education

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Additional Project Details

Operating Systems

Linux, Mac, Windows

Programming Language

JavaScript

Related Categories

JavaScript Education Software

Registered

2025-09-25