PerformanceMeasure: detail property

Available in workers

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

Value

Returns the value it was set to (from markOptions of performance.measure()).

Examples

The following example demonstrates the detail property.

performance.measure("dog", { detail: "labrador", start: 0, end: 12345 });

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

dogEntries[0].detail; // labrador

Specifications

Browser compatibility