PerformanceElementTiming: url property
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The url read-only property of the PerformanceElementTiming interface returns the initial URL of the resource request when the element is an image.
Value
A string which is the initial URL of the resources request for images or 0 for text.
Examples
Logging url
In this example an <img> element is being observed by adding the elementtiming attribute. A PerformanceObserver is registered to get all performance entries of type "element" and the buffered flag is used to access data from before observer creation. Calling entry.url returns https://example.com/image.jpg.
<img src="https://example.com/image.jpg" alt="a nice image" elementtiming="big-image" id="myImage" /> const observer = new PerformanceObserver((list) => { list.getEntries().forEach((entry) => { if (entry.identifier === "big-image") { console.log(entry.url); } }); }); observer.observe({ type: "element", buffered: true }); Specifications
| Specification |
|---|
| Element Timing API # dom-performanceelementtiming-url |