data-*
The data-*
SVG attributes are called custom data attributes. They let SVG markup and its resulting DOM share information that standard attributes can't, usually for scripting purposes. Their custom data are available via the SVGElement
interface of the element the attributes belong to, with the SVGElement.dataset
property.
The *
can be replaced by any characters allowed in XML's rules for names, with the following restrictions:
- Can't start with
xml
. - No semicolons (
;
,U+003A
). - No capital
A
toZ
letters.
Note: The SVGElement.dataset
property is a DOMStringMap
that provides the attribute data-test-value
via SVGElement.dataset.testValue
. Hyphen characters (-
, U+002D
) are removed and the next letter is capitalized, resulting in the camelCase format.
You can use this attribute with any SVG element.
Specifications
Specification |
---|
Scalable Vector Graphics (SVG) 2 # DataAttributes |
Browser compatibility
BCD tables only load in the browser
See also
SVGElement
- The
SVGElement.dataset
property used to access these attributes from scripts. - Using data attributes