CSSValueList: length property

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 length read-only property of the CSSValueList interface represents the number of CSSValues 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:

Value

An unsigned long representing the number of CSSValues.

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It has been superseded by a modern, but incompatible, CSS Typed Object Model API that is now on the standard track.

Browser compatibility