# Page Not Found

The URL `<` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [Attribute Starts With Selector [name^="value"] (ok)](https://javascriptuse.gitbook.io/javascript/advanced/attribute-starts-with-selector-name-value-ok.md)
- [video trong thẻ <video> tự phát bằng JavaScript (ok)](https://javascriptuse.gitbook.io/javascript/advanced/video-trong-the-less-than-video-greater-than-tu-phat-bang-javascript-ok.md)
- [🤗 Click → Scroll Back to a Specific Element (Anchor Link), click back to element in elementor (ok)](https://javascriptuse.gitbook.io/javascript/advanced/click-scroll-back-to-a-specific-element-anchor-link-click-back-to-element-in-elementor-ok.md)
- [Adding a country code picker to a phone number input field enhances (ok)](https://javascriptuse.gitbook.io/javascript/advanced/adding-a-country-code-picker-to-a-phone-number-input-field-enhances-ok.md)
- [🥹 Tìm hiểu về Map và Set trong javascript (ok)](https://javascriptuse.gitbook.io/javascript/advanced/tim-hieu-ve-map-va-set-trong-javascript-ok.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://javascriptuse.gitbook.io/javascript/advanced/attribute-starts-with-selector-name-value-ok.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://javascriptuse.gitbook.io/javascript/sitemap.md

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

### Option 3 — Retrieve the full documentation corpus

Full export: https://javascriptuse.gitbook.io/javascript/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., `/javascript/advanced/attribute-starts-with-selector-name-value-ok.md`).

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