files/en-us/web/api/cssvaluelist/length/index.md
{{APIRef("CSSOM")}}{{Deprecated_header}}
The length read-only property of the
{{domxref("CSSValueList")}} interface represents the number of {{domxref("CSSValue")}}s
in the list. The range of valid values of the indices is 0 to
length-1 inclusive.
[!NOTE] This property 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.
An unsigned long representing the number of {{domxref("CSSValue")}}s.
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It has been superseded by a modern, but incompatible, CSS Typed Object Model API that is now on the standard track.
{{Compat}}