PerformanceElementTiming.url
The url
read-only property of the PerformanceElementTiming
interface returns the initial URL of the resource request when the element is an image.
Syntax
var url = PerformanceElementTiming.url;
Value
A DOMString
which is the initial URL of the resources request for images or 0 for text.
Examples
In this example 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) => { let entries = list.getEntries().forEach(function (entry) { if (entry.identifier === "big-image") { console.log(entry.url); } }); }); observer.observe({ entryTypes: ["element"] });
Note: This example uses the PerformanceObserver
interface to create a list of performance measurement events. In our case we observe the PerformanceEntry.entrytype
element
in order to use the PerformanceElementTiming
interface.
Specifications
Browser compatibility
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
url |
77 |
79 |
No |
No |
64 |
No |
77 |
77 |
No |
55 |
No |
12.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/PerformanceElementTiming/url