precise-now/build/src/main.js

Like `performance.now()` but in nanoseconds.

const nowFunc=()=>{
if(globalThis.process?.hrtime?.bigint!==undefined){
return hrtime.bind(undefined,globalThis.process.hrtime.bigint())
}

if(globalThis.performance?.now!==undefined){
return performanceNow.bind(undefined,globalThis.performance.now())
}

return dateNow.bind(undefined,Date.now())
};

const hrtime=(start)=>
Number(globalThis.process.hrtime.bigint()-start);

const performanceNow=(start)=>
Math.round((globalThis.performance.now()-start)*NANOSECS_TO_MILLISECS);

const dateNow=(start)=>(Date.now()-start)*NANOSECS_TO_MILLISECS;

const NANOSECS_TO_MILLISECS=1e6;











const preciseNow=nowFunc();

export default preciseNow;