Definition
Element Timing API defines PerformanceElementTiming
[Exposed=Window]
interface PerformanceElementTiming : PerformanceEntry {
readonly attribute DOMHighResTimeStamp renderTime;
readonly attribute DOMHighResTimeStamp loadTime;
readonly attribute DOMRectReadOnly intersectionRect;
readonly attribute DOMString identifier;
readonly attribute unsigned long naturalWidth;
readonly attribute unsigned long naturalHeight;
readonly attribute DOMString id;
readonly attribute Element? element;
readonly attribute DOMString url;
[Default] object toJSON();
};