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GeezerVison is showing developer.mozilla.org — DOMStringMap - Web APIs | MDN

DOMStringMap

Baseline
Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

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The DOMStringMap interface is used for the HTMLElement.dataset attribute, to represent data for custom attributes added to elements.

Specifications

Specification
HTML
# domstringmap

Browser compatibility

See also

  • HTMLElement.dataset
  • Global attributes - data-*

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This page was last modified on Apr 11, 2025 by MDN contributors.

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