index.md

---
title: DOMStringMap
slug: Web/API/DOMStringMap
page-type: web-api-interface
browser-compat: api.DOMStringMap
---

{{ APIRef("HTML DOM") }}

The **`DOMStringMap`** interface is used for the {{domxref("HTMLElement.dataset")}} attribute, to represent data for custom attributes added to elements.

## Specifications

{{Specifications}}

## Browser compatibility

{{Compat}}

## See also

- {{domxref("HTMLElement.dataset")}}
- [Global attributes - `data-*`](/en-US/docs/Web/HTML/Global_attributes/data-*)