1510921 - CSS transition-timing-function no longer has frames(); steps() enhanced

Status: RESOLVED INCOMPLETE

(Developer Documentation Graveyard :: General, enhancement, P2)

Description

[Thomas L Shinnick]

:: Developer Documentation Request

      Request Type: Correction
     Gecko Version: unspecified
 Technical Contact: 

:: Details

It is hard to know what combination of current standards docs defines all aspects of CSS transition-timing-function, with at least  
"CSS Animations Level 1" (https://www.w3.org/TR/css-animations-1/) and "CSS Easing Functions Level 1" (https://www.w3.org/TR/css-easing-1/) pertinent.  

However it is certainly true that no *current* spec version mentions the "frames()" function documented in this MDN page.

I finally found mention at https://www.w3.org/TR/2018/WD-css-easing-1-20181009/#changes that 

  The following changes have been made since the 21 February 2017 Working Draft:
    Removed `frames()` timing function.
    Added jump-start, jump-end, jump-none, and jump-both keywords to steps() timing function.

That earlier spec version does mention the frames() function at https://www.w3.org/TR/2017/WD-css-timing-1-20170221/#frames-timing-functions

It appears that the proposed usages of frames() were replaced by elaboration of steps() as noted above, and indeed the MDN page does not yet mention those added keywords (e.g. "jump-start")

Please delete frames() from the MDN page, and elaborate the description for steps() with the new enhancements and keywords.


Note: the current spec "CSS Easing Functions Level 1" was previously named "CSS Timing Functions Level 1"

Comment 1

[Chris Mills [:cmills]]

Closing; this is now tracked at https://github.com/mdn/sprints/issues/997