PerformanceMark: detail property
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 Level 3 # dom-performancemark-detail |
Browser compatibility
BCD tables only load in the browser