Missing Types: ViewTransition

[GrandSchtroumpf]

Missing types

startViewTransition now support an object as parameter { update: () => void | Promise<void>; types: string[] }
https://developer.chrome.com/docs/web-platform/view-transitions/same-document#view-transition-types

document.startViewTransition({
  update: updateDOM,
  types: ['spa-navigation'],
});

Also the ViewTransition object now includes a types key of type ViewTransitionTypeSet which implement the Set object.

Missing viewTransitionClass in CSSStyleDeclaration

The view-transition-class declaration should be included in the CSSStyleDeclaration
https://developer.chrome.com/docs/web-platform/view-transitions/same-document#view-transition-class

element.style.viewTransitionClass;

This feature is supported by Chome (125) and Safari (18).

Note: Both features are not available on MDN yet as for today (27 January 2024)