import { type Performance } from "https://deno.land/x/deno@v1.28.3/cli/tsc/dts/lib.deno.ns.d.ts";
Deno supports User Timing Level 3 which is not widely supported yet in other runtimes.
Check out the Performance API documentation on MDN for further information about how to use the API.
Methods
mark(markName: string, options?: PerformanceMarkOptions): PerformanceMark
Stores a timestamp with the associated name (a "mark").
measure(measureName: string, options?: PerformanceMeasureOptions): PerformanceMeasure
Stores the DOMHighResTimeStamp duration between two marks along with the
associated name (a "measure").