# Page Not Found

The URL `about.html` does not exist.

You might be looking for one of these pages:
- [Xem thêm](https://javascriptuse.gitbook.io/javascript/xem-them.md)
- [Jest tutorial](https://javascriptuse.gitbook.io/javascript/jest-tutorial.md)
- [[Chart] Chart.js](https://javascriptuse.gitbook.io/javascript/chart-chart.js.md)
- [=== START jQuery Mobile ===](https://javascriptuse.gitbook.io/javascript/start-jquery-mobile.md)
- [ScrollIt.js menu (ok)](https://javascriptuse.gitbook.io/javascript/scrollit.js-menu-ok.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://javascriptuse.gitbook.io/javascript/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://javascriptuse.gitbook.io/javascript/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/javascript/xem-them.md`)
- Use `Accept: text/markdown` header for content negotiation