CSSValueList: length property

Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

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It has been superseded by a modern, but incompatible, CSS Typed Object Model API that is now on the standard track.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

desktop mobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
length
Deprecated
Chrome – No support
Chrome
footnote No support
Edge – No support
Edge
footnote No support
Firefox – No support
Firefox 1 – 61 (Release date: 2004-11-09)
footnote Removed in 62 and later
Opera – No support
Opera
footnote No support
Safari – Full support
Safari 10 (Release date: 2016-09-20)
footnote Full support
Chrome Android – No support
Chrome Android
footnote No support
Firefox for Android – No support
Firefox for Android 4 – 61 (Release date: 2011-03-29)
footnote Removed in 62 and later
Opera Android – No support
Opera Android
footnote No support
Safari on iOS – Full support
Safari on iOS 10 (Release date: 2016-09-13)
footnote Full support
Samsung Internet – No support
Samsung Internet
footnote No support
WebView Android – No support
WebView Android
footnote No support
WebView on iOS – Full support
WebView on iOS 10 (Release date: 2016-09-13)
footnote Full support

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
No support
No support
Deprecated. Not for use in new websites.