$<T> returns the element type it is given and assumes the element is there: 122 lookups take their type from the tag their id is on in the markup. A handler reads its target through a cast, since a typed element will not take a handler whose event names a narrower target. strictNullChecks found no bug the page had; its 94 places were values the code already handles in ways the type-check could not follow (data- attributes the page writes, a map entry set the line before, Share drawn only for an item with a link), each now said so. isPlayable stays a plain boolean: as a type guard its false would have meant "no file", and it is also false for a file that is not audio or video. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
18 KiB
18 KiB