---
title: "Selection.serialize() | Grafana k6 documentation"
description: "Encode a set of form elements as a string in standard URL-encoded notation for submission."
---

> For a curated documentation index, see [llms.txt](/llms.txt). For the complete documentation index, see [llms-full.txt](/llms-full.txt).

# Selection.serialize()

Encode a set of form elements as a string in standard URL-encoded notation for submission. Mimics [jquery.serialize](https://api.jquery.com/serialize/)

### Returns

Expand table

| Type   | Description                                                          |
|--------|----------------------------------------------------------------------|
| string | The URL-encoded representation of the matched form or form elements. |

### Example

JavaScript ![Copy code to clipboard](/media/images/icons/icon-copy-small-2.svg) Copy

```javascript
import { parseHTML } from 'k6/html';
import { sleep } from 'k6';

export default function () {
  const content = `
 <form><input name="username"></form>
  `;

  const doc = parseHTML(content);
  const sel = doc.find('form');
  const serialized = sel.serialize();

  console.log(serialized); // "username="

  sleep(1);
}
```