Element: elementTiming 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 elementTiming property of the Element interface identifies elements for observation in the PerformanceElementTiming API. The elementTiming property reflects the value of the elementtiming attribute.

Value

A string.

Examples

Logging the value of elementTiming

In this example, adding the elementtiming attribute to the <img> element sets the image to be observed.

html
<img
  src="image.jpg"
  alt="a nice image"
  elementtiming="big-image"
  id="myImage" />

You can get the string value of the elementtiming HTML attribute by calling el.elementTiming.

js
const el = document.getElementById("myImage");
console.log(el.elementTiming); // "big-image"

For a more complete example on how to use the Element Timing API, see PerformanceElementTiming.

Specifications

Specification
Element Timing API
# dom-element-elementtiming

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
elementTiming
Experimental

Legend

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Full support
Full support
No support
No support
Experimental. Expect behavior to change in the future.

See also