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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DOMStringMap インターフェイスは、要素に追加されたカスタム属性のデータを表すために HTMLElement.dataset/SVGElement.dataset 属性で使用されます。
仕様書
| Specification |
|---|
| HTML # embedding-custom-non-visible-data-with-the-data-*-attributes:domstringmap-3 |