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PerformanceElementTiming: url property

files/en-us/web/api/performanceelementtiming/url/index.md

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{{APIRef("Performance API")}}{{SeeCompatTable}}

The url read-only property of the {{domxref("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 {{HTMLElement("img")}} element is being observed by adding the elementtiming attribute. A {{domxref("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.

html
js
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

{{Specifications}}

Browser compatibility

{{Compat}}