time property is a
DOMHighResTimeStamp that indicates the time at which the intersection
change occurred relative to the time at which the document was created.
var time = IntersectionObserverEntry.time;
DOMHighResTimeStamp which indicates the time at which the
target element experienced the
intersection change described by the
IntersectionObserverEntry. The time is
specified in milliseconds since the creation of the containing document.
element visibility with the Intersection Observer API for a complete example which
time property to track how long elements are visible to the user.
|Intersection Observer |
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