# Additional JS

**Additional JS** section in the Customizer allows you to add custom JavaScript code directly to your site without editing theme files.

Here's how to use this feature:

<figure><img src="/files/FGAuueIOOTr039xUAsOq" alt=""><figcaption></figcaption></figure>

#### **Customizing with Additional JS**: <a href="#customizing-with-additional-js" id="customizing-with-additional-js"></a>

* **Accessing Additional JS**:
  * Go to **Appearance > Customize**.
  * Look for the **Additional JS** or similar section (depending on the theme).
* **Adding Custom JavaScript**:
  * In the **Additional JS** field, you can write or paste your custom JavaScript code.
  * This code will be applied site-wide, affecting all pages where the theme is used.
* **Best Practices**:
  * **Enclose your code**: Use `<script></script>` tags only if required by your theme. Often, these tags are not needed in the Customizer’s Additional JS field.
  * **Test your code**: Before applying complex scripts, test them in a development environment to avoid breaking the site.
  * **Optimize performance**: Avoid adding heavy or unnecessary scripts that could slow down your site.
* **Common Uses**:
  * Adding interactive elements like sliders or modals.
  * Customizing behavior of theme elements.
  * Integrating third-party services or analytics that require additional scripts.

**Example:**

To add a simple alert when the homepage loads:

```
document.addEventListener('DOMContentLoaded', function() {
    if (window.location.pathname === '/') {
        alert('Welcome to the homepage!');
    }
});
```

Would you like help with writing a specific JavaScript code snippet for your site?


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://buddhathemes-test.gitbook.io/ogie/theme-customizer/additional-js.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.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.