CSSKeyframesRule.length

Category: CSS
Type: Chromium catches up
Status: Enabled by default (Chrome 124)
Intent stage: None

Breaking change: No
Enterprise impact: None
Spec maturity: Published standard
Web Platform Tests: Yes

WPT details: https://wpt.fyi/results/css/css-animations/idlharness.html https://wpt.fyi/results/css/cssom/CSSKeyframesRule.html

Summary

Exposes length attribute of CSSKeyframesRule. Interfaces that support indexed properties must define an integer-typed attribute named "length".

Motivation

Exposes length attribute of CSSKeyframesRule. Interfaces that support indexed properties must define an integer-typed attribute named "length". In Blink, getter had been already defined but there is no "length".

Standards & signals

Specification: https://drafts.csswg.org/css-animations/#interface-csskeyframesrule
Firefox: Shipped/Shipping
Safari: Shipped/Shipping
Web developers: No signals
Tracking bug: https://issues.chromium.org/issues/40943143

Ecosystem

Web Platform Tests: https://wpt.fyi/results/?q=css%2Fcss-animations%2Fidlharness
Chrome Platform Showcase: https://chrome-platform-showcase.paulkinlan-ea.deno.net/features
GenDN reference: https://gendn.paulkinlan-ea.deno.net/features
chrome.dev demos search: https://www.google.com/search?q=site%3Achrome.dev+CSSKeyframesRule.length
MDN Web Docs: https://developer.mozilla.org/en-US/search?q=CSSKeyframesRule.length
Baseline status: https://webstatus.dev/?q=CSSKeyframesRule.length

View on chromestatus.com