Jacky Zhao
2023-08-12 e1dd6aee863878a02f51200b3878d619220c22f3
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import chalk from "chalk"
import pretty from "pretty-time"
 
export class PerfTimer {
  evts: { [key: string]: [number, number] }
 
  constructor() {
    this.evts = {}
    this.addEvent("start")
  }
 
  addEvent(evtName: string) {
    this.evts[evtName] = process.hrtime()
  }
 
  timeSince(evtName?: string): string {
    return chalk.yellow(pretty(process.hrtime(this.evts[evtName ?? "start"])))
  }
}