# Page Not Found

The URL `qian-duan/javascript/1.jpg` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [JavaScript](https://jupiter-1992.gitbook.io/jupiter-note/qian-duan/javascript.md)
- [04 Canvas 基础用法](https://jupiter-1992.gitbook.io/jupiter-note/qian-duan/javascript/04canvas-ji-chu-yong-fa.md)
- [02 JavaScript 正则技巧](https://jupiter-1992.gitbook.io/jupiter-note/qian-duan/javascript/02javascript-zheng-ze-ji-qiao.md)
- [01 JavaScript 秘密花园](https://jupiter-1992.gitbook.io/jupiter-note/qian-duan/javascript/01javascript-mi-mi-hua-yuan.md)
- [10 正则匹配汉字](https://jupiter-1992.gitbook.io/jupiter-note/qian-duan/javascript/10-zheng-ze-pi-pei-han-zi.md)

## How to find the correct page

If the exact page cannot be found, you can still retrieve the information using the documentation query interface.

### Option 1 — Ask a question (recommended)

Perform an HTTP GET request on the documentation index with the `ask` parameter:

```
GET https://jupiter-1992.gitbook.io/jupiter-note/qian-duan/javascript.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

### Option 2 — Browse the documentation index

Full index: https://jupiter-1992.gitbook.io/jupiter-note/sitemap.md

Use this to discover valid page paths or navigate the documentation structure.

### Option 3 — Retrieve the full documentation corpus

Full export: https://jupiter-1992.gitbook.io/jupiter-note/llms-full.txt

Use this to access all content at once and perform your own parsing or retrieval. It will be more expensive.

## Tips for requesting documentation

Prefer `.md` URLs for structured content, append `.md` to URLs (e.g., `/jupiter-note/qian-duan/javascript.md`).

You may also use `Accept: text/markdown` header for content negotiation.