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

Specification
Element Timing API # ref-for-dom-performanceelementtiming-id

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