PerformanceElementTiming.id
The id
read-only property of the PerformanceElementTiming
interface returns the id
of the associated element.
Syntax
var id = PerformanceElementTiming.id;
Value
A DOMString
.
Examples
In this example calling entry.id
will log to the console myImage
, this being the id
of the image element.
<img src="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.id); } }); }); 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 | |
id |
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/id