> For the complete documentation index, see [llms.txt](https://docs.vdo.ninja/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.vdo.ninja/advanced-settings/design-parameters/and-js.md).

# \&js

Lets you pass a third party hosted javascript file URL

General Option! ([`&push`](/advanced-settings/setup-parameters/push.md), [`&room`](/advanced-settings/setup-parameters/room.md), [`&view`](/advanced-settings/mixer-scene-parameters/view.md), [`&scene`](/advanced-settings/mixer-scene-parameters/scene.md))

## Options

Example: `&js=https%3A%2F%2Fvdo.ninja%2Fexamples%2Ftestjs.js`

| Value         | Description                             |
| ------------- | --------------------------------------- |
| (encoded URL) | Third party hosted java script file URL |

## Details

`&js` lets you pass a third party hosted java script file URL (URL-encoded), allowing for a custom code injection without self-hosting, IFrames or chrome extensions.

Example:\
<https://vdo.ninja/?js=https%3A%2F%2Fvdo.ninja%2Fexamples%2Ftestjs.js>

You can use this tool to encode the URL you want to link to\
<https://www.urlencoder.org/>

## Related

{% content-ref url="/pages/8TTkuVw3O1KRUSy0Y7b4" %}
[\&base64js](/advanced-settings/design-parameters/and-base64js.md)
{% endcontent-ref %}


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