PerformanceEventTiming: processingEnd property
The read-only processingEnd
property returns the time the last event handler finished executing.
It's equal to PerformanceEventTiming.processingStart
when there are no such event handlers.
Value
A DOMHighResTimeStamp
timestamp.
Examples
Using the processingEnd property
The processingEnd
property can be used when observing event-timing entries (PerformanceEventTiming
). For example, to calculate input delay or event processing times.
js
const observer = new PerformanceObserver((list) => {
list.getEntries().forEach((entry) => {
// Full duration
const duration = entry.duration;
// Input delay (before processing event)
const delay = entry.processingStart - entry.startTime;
// Synchronous event processing time
// (between start and end dispatch)
const time = entry.processingEnd - entry.processingStart;
});
});
// Register the observer for events
observer.observe({ type: "event", buffered: true });
Specifications
Specification |
---|
Event Timing API # dom-performanceeventtiming-processingend |
Browser compatibility
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