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).
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).
Returns the value it is set to (from markOptions
of performance.mark()
or the PerformanceMark()
constructor).
The following example demonstrates the detail
property.
js
performance.mark("dog", { detail: "labrador" }); const dogEntries = performance.getEntriesByName("dog"); dogEntries[0].detail; // labrador
Specification |
---|
User Timing # dom-performancemark-detail |
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
detail |
78 | 79 | 101 | No | 65 | 14.1 | 79 | 78 | 101 | 56 | 14.5 | 12.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/PerformanceMark/detail