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denoland-deno/cli/js/web/performance.ts
Bartek Iwańczuk 99a0c6df79
reorg: cli/js/compiler/, move more API to cli/js/web/ (#4310)
- moves compiler implementation to "cli/js/compiler/" directory
- moves more APIs to "cli/js/web":
    * "console.ts"
    * "console_table.ts"
    * "performance.ts"
    * "timers.ts"
    * "workers.ts"
- removes some dead code from "cli/js/"
2020-03-11 10:53:06 +01:00

16 lines
480 B
TypeScript

// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { now as opNow } from "../ops/timers.ts";
export class Performance {
/** Returns a current time from Deno's start in milliseconds.
*
* Use the flag --allow-hrtime return a precise value.
*
* const t = performance.now();
* console.log(`${t} ms since start!`);
*/
now(): number {
const res = opNow();
return res.seconds * 1e3 + res.subsecNanos / 1e6;
}
}