interface PerformanceMark
implements PerformanceEntry
import { type PerformanceMark } from "https://deno.land/x/evt@v2.5.2/lib/types/lib.dom.ts";
PerformanceMark is an abstract interface for PerformanceEntry objects with an entryType of "mark". Entries of this type are created by calling performance.mark() to add a named DOMHighResTimeStamp (the mark) to the browser's performance timeline.