CSSValueList
Deprecated
Avoid using this feature in new projects. The DOM level 2 CSS object model was excluded from the later CSS object model (CSSOM) specification. This feature may be a candidate for removal from web standards or browsers.
Consider using the following features instead: CSS object model.
Non-standard: This feature is not standardized. We do not recommend using non-standard features in production, as they have limited browser support, and may change or be removed. However, they can be a suitable alternative in specific cases where no standard option exists.
The CSSValueList interface derives from the CSSValue interface and provides the abstraction of an ordered collection of CSS values.
Note: This interface was part of an attempt to create a typed CSS Object Model. This attempt has been abandoned, and most browsers do not implement it.
To achieve your purpose, you can use:
- the untyped CSS Object Model, widely supported, or
- the modern CSS Typed Object Model API, less supported and considered experimental.
Some properties allow an empty list in their syntax. In that case, these properties take the none identifier. So, an empty list means that the property has the value none.
The items in the CSSValueList are accessible via an integral index, starting from 0.
Instance properties
Inherits properties from its parent, CSSValue.
CSSValueList.lengthRead only-
An
unsigned longrepresenting the number ofCSSValuesin the list.
Instance methods
CSSValueList.item()-
This method is used to retrieve a
CSSValueby ordinal index. The order in this collection represents the order of the values in the CSS style property. If index is greater than or equal to the number of values in the list, this returnsnull.
Specifications
This feature was originally defined in the DOM Style Level 2 specification, but has been dropped from any standardization effort since then.
It has been superseded by a modern, but incompatible, CSS Typed Object Model API that is now on the standard track.