CSSImageValue - Web APIs 编辑

Experimental

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The CSSImageValue interface of the CSS Typed Object Model API represents values for properties that take an image, for example background-image, list-style-image, or border-image-source. The CSSImageValue object represents an <image> that involves an URL, such as url() or image(), but not linear-gradient()or element() .

Properties

None.

Methods

None.

Examples

We create an element

<button>Magic Wand</button>

We add some CSS, including a background image requesting a binary file:

button {
  display: inline-block;
  min-height: 100px; min-width: 100px;
  background: no-repeat 5% center url(https://www.wenjiangs.com/wp-content/uploads/2020/mozilla/magicwand.png) aqua;
}

We get the element's style map. We then get() the background-image from the stylemap and stringify it:

// get the element
const button = document.querySelector( 'button' );

// Retrieve all computed styles with computedStyleMap()
const allComputedStyles = button.computedStyleMap();

// Return the CSSImageValue Example
console.log( allComputedStyles.get('background-image') );
console.log( allComputedStyles.get('background-image').toString() );

Specifications

Browser compatibility

BCD tables only load in the browser

See also

• CSSKeywordValue
• CSSNumericValue
• CSSPositionValue
• CSSTransformValue
• CSSUnparsedValue