StylePropertyMap: append() method
The append()
method of the
StylePropertyMap
interface adds the passed CSS value to the
StylePropertyMap
with the given property.
Syntax
js
append(property, value)
Parameters
Return value
None (undefined
).
Examples
This example shows an extra background image value being added to the
background-image
property of the element, using
HTMLElement.attributeStyleMap
.
js
// get the button element
const buttonEl = document.querySelector("button");
// append another value to the background-image property set on the attribute
buttonEl.attributeStyleMap.append(
"background-image",
"linear-gradient(180deg, blue, black)",
);
Specifications
Specification |
---|
CSS Typed OM Level 1 # dom-stylepropertymap-append |
Browser compatibility
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