PerformanceMark: detail property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2015.

Note: This feature is available in Web Workers.

The read-only detail property returns arbitrary metadata that was included in the mark upon construction (either when using performance.mark() or the PerformanceMark() constructor).

Value

Returns the value it is set to (from markOptions of performance.mark() or the PerformanceMark() constructor).

Examples

The following example demonstrates the detail property.

js
performance.mark("dog", { detail: "labrador" });

const dogEntries = performance.getEntriesByName("dog");

dogEntries[0].detail; // labrador

Specifications

Specification
User Timing
# dom-performancemark-detail

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobileserver
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Deno
Node.js
detail

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support